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Università della Svizzera italiana
1.
Mattavelli, Andrea.
Software redundancy: what, where, how.
Degree: 2016, Università della Svizzera italiana
URL: http://doc.rero.ch/record/278320
► Software systems have become pervasive in everyday life and are the core component of many crucial activities. An inadequate level of reliability may determine the…
(more)
▼ Software systems have become pervasive in everyday
life and are the core component of many crucial activities. An
inadequate level of reliability may determine the commercial
failure of a software product. Still, despite the commitment and
the rigorous verification processes employed by developers,
software is deployed with faults. To increase the reliability of
software systems, researchers have investigated the use of various
form of redundancy. Informally, a software system is redundant when
it performs the same functionality through the execution of
different elements. Redundancy has been extensively exploited in
many software engineering techniques, for example for
fault-tolerance and reliability engineering, and in
self-adaptive
and
self-
healing programs. Despite the many uses, though, there is
no formalization or study of software redundancy to support a
proper and effective design of software. Our intuition is that a
systematic and formal investigation of software redundancy will
lead to more, and more effective uses of redundancy. This thesis
develops this intuition and proposes a set of ways to characterize
qualitatively as well as quantitatively redundancy. We first
formalize the intuitive notion of redundancy whereby two code
fragments are considered redundant when they perform the same
functionality through different executions. On the basis of this
abstract and general notion, we then develop a practical method to
obtain a measure of software redundancy. We prove the effectiveness
of our measure by showing that it distinguishes between shallow
differences, where apparently different code fragments reduce to
the same underlying code, and deep code differences, where the
algorithmic nature of the computations differs. We also demonstrate
that our measure is useful for developers, since it is a good
predictor of the effectiveness of techniques that exploit
redundancy. Besides formalizing the notion of redundancy, we
investigate the pervasiveness of redundancy intrinsically found in
modern software systems. Intrinsic redundancy is a form of
redundancy that occurs as a by-product of modern design and
development practices. We have observed that intrinsic redundancy
is indeed present in software systems, and that it can be
successfully exploited for good purposes. This thesis proposes a
technique to automatically identify equivalent method sequences in
software systems to help developers assess the presence of
intrinsic redundancy. We demonstrate the effectiveness of the
technique by showing that it identifies the majority of equivalent
method sequences in a system with good precision and
performance.
Advisors/Committee Members: Mauro (Dir.), Antonio (Codir.).
Subjects/Keywords: Self-healing
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
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APA (6th Edition):
Mattavelli, A. (2016). Software redundancy: what, where, how. (Thesis). Università della Svizzera italiana. Retrieved from http://doc.rero.ch/record/278320
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Mattavelli, Andrea. “Software redundancy: what, where, how.” 2016. Thesis, Università della Svizzera italiana. Accessed March 07, 2021.
http://doc.rero.ch/record/278320.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Mattavelli, Andrea. “Software redundancy: what, where, how.” 2016. Web. 07 Mar 2021.
Vancouver:
Mattavelli A. Software redundancy: what, where, how. [Internet] [Thesis]. Università della Svizzera italiana; 2016. [cited 2021 Mar 07].
Available from: http://doc.rero.ch/record/278320.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Mattavelli A. Software redundancy: what, where, how. [Thesis]. Università della Svizzera italiana; 2016. Available from: http://doc.rero.ch/record/278320
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Waikato
2.
Membery, Brent.
Behind the Ink NZ: Tattoos in Aotearoa New Zealand and the Link to a Process of Self-Healing
.
Degree: 2015, University of Waikato
URL: http://hdl.handle.net/10289/10100
► This study aimed to examine the reasons why individuals in Aotearoa New Zealand tattoo their bodies and analyse the mechanism by which tattoo acts as…
(more)
▼ This study aimed to examine the reasons why individuals in Aotearoa New Zealand tattoo their bodies and analyse the mechanism by which tattoo acts as a method of coping,
self-
healing and
self-transformation for these individuals. Further this study aimed to investigate how tattoo allows individuals to re-write and transform their meaning of traumatic and/or stressful events into stories of empowerment, strength and survival. While tattoo has been explored for meaning and function in Aotearoa New Zealand, there was seen to be no empirically grounded research looking into how tattoo might serve as a therapeutic tool.
The study examined 427 survey respondents and eight interviewees across Aotearoa New Zealand. The participants ranged in age from 18 to 65-years-old and varied across multiple ethnicities.
This study combined quantitative and qualitative data collection methods in a two-phase project. Data collection phase one involved 427 participants respond to an online survey. This establised a baseline for cross-comparison of attitudes, backgrounds and life experiences. Data collection phase two involved eight semi-structured interviews to explore individual experiences and uncover the relationship between their tattoos and how it had helped them to cope/heal in some way. To analyse these interviews, thematic analysis was combined with phenomenological analysis.
The findings from this study suggest that there are multiple reasons (expression of
self, aesthetic aspects, identity, passage of rights, remembrance/tributes and personal
healing among others) why individuals chose to engage in the art form of tattooing. Findings also suggest that tattoo, directly relating to the mind/body continuum of stress/trauma can serve as a mechanism to enable individuals to re-script stressful/traumatic events, reinforce identity and
self-acceptance, acknowledge past difficulties and turn them into positives and increase inner motivations and positive thinking which was seen to initiate
healing and recovery. This suggests that tattoo serves as a powerful mechanism to aid in personal transformation, but also challenge previous meanings associated with the art form of tattoo.
Advisors/Committee Members: Thakker, Jo (advisor).
Subjects/Keywords: Tattoos;
Self-healing;
Self-transformation
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Membery, B. (2015). Behind the Ink NZ: Tattoos in Aotearoa New Zealand and the Link to a Process of Self-Healing
. (Masters Thesis). University of Waikato. Retrieved from http://hdl.handle.net/10289/10100
Chicago Manual of Style (16th Edition):
Membery, Brent. “Behind the Ink NZ: Tattoos in Aotearoa New Zealand and the Link to a Process of Self-Healing
.” 2015. Masters Thesis, University of Waikato. Accessed March 07, 2021.
http://hdl.handle.net/10289/10100.
MLA Handbook (7th Edition):
Membery, Brent. “Behind the Ink NZ: Tattoos in Aotearoa New Zealand and the Link to a Process of Self-Healing
.” 2015. Web. 07 Mar 2021.
Vancouver:
Membery B. Behind the Ink NZ: Tattoos in Aotearoa New Zealand and the Link to a Process of Self-Healing
. [Internet] [Masters thesis]. University of Waikato; 2015. [cited 2021 Mar 07].
Available from: http://hdl.handle.net/10289/10100.
Council of Science Editors:
Membery B. Behind the Ink NZ: Tattoos in Aotearoa New Zealand and the Link to a Process of Self-Healing
. [Masters Thesis]. University of Waikato; 2015. Available from: http://hdl.handle.net/10289/10100

Delft University of Technology
3.
Floris, C.E. (author).
Magnetically Driven Healing of Self-Healing Polymers.
Degree: 2017, Delft University of Technology
URL: http://resolver.tudelft.nl/uuid:b20ed8a4-b894-40ad-af43-a7f25fb18e85
► Damage in materials and structures is unavoidable, leading to the time deterioration of its functional properties (e.g. barrier, load bearing, aesthetics) and ultimate repair or…
(more)
▼ Damage in materials and structures is unavoidable, leading to the time deterioration of its functional properties (e.g. barrier, load bearing, aesthetics) and ultimate repair or replacement. Lifetime extension can be achieved by using materials with initially higher performance or using materials that can repair themselves (self-healing). The latter are materials capable of repairing themselves autonomously or with little human intervention, thereby partially or fully restoring their original material properties and performance. To be able to heal macroscopic damages a first key requirement is initial contact between broken faces. Only after this first step will the subsequent molecular processes be able to proceed with the healing at the molecular scale. In most studied concepts the contacting stage is performed by hand placing, limiting potential applications and highlighting the need for research to facilitate this necessary first step. This MSc research project addresses this problem by exploring the potential of magnetically induced damage closure. The main underlying idea states that magnetic forces at the crack plane should be sufficient to promote the bridging of broken parts, thereby facilitating the interfacial phenomena leading to healing. Such a concept can conceptually be implemented by using magnetic healable polymers, pending magnetic particles in the polymer or embedding particles as extrinsic phases. In a preliminary stage it was decided to study the latter experimentally as well as computationally. A hydrogel-composite consisting of poly(vinyl alcohol) polymer matrix mixed with iron-oxide (magnetic) particles was used as model system. Experiments showed that the presence or absence of a magnetic field does not affect the ultimate interfacial healing achieved. COMSOL simulations fed with experimental data showed the applicability of the concept in the presence of external magnetic fields for soft polymers and small gap distances. The results obtained demonstrate the viability of the concept to close damages as well as applying some interfacial pressure not affecting the ultimate healing levels.
Aerospace Engineering
Aerospace Structures and Materials
Novel Aerospace Materials
Advisors/Committee Members: Garcia, S.J. (mentor), van der Zwaag, S. (mentor), Zhong, N. (mentor).
Subjects/Keywords: Self-healing materials; Magnetically driven healing; Self-healing
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Floris, C. E. (. (2017). Magnetically Driven Healing of Self-Healing Polymers. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:b20ed8a4-b894-40ad-af43-a7f25fb18e85
Chicago Manual of Style (16th Edition):
Floris, C E (author). “Magnetically Driven Healing of Self-Healing Polymers.” 2017. Masters Thesis, Delft University of Technology. Accessed March 07, 2021.
http://resolver.tudelft.nl/uuid:b20ed8a4-b894-40ad-af43-a7f25fb18e85.
MLA Handbook (7th Edition):
Floris, C E (author). “Magnetically Driven Healing of Self-Healing Polymers.” 2017. Web. 07 Mar 2021.
Vancouver:
Floris CE(. Magnetically Driven Healing of Self-Healing Polymers. [Internet] [Masters thesis]. Delft University of Technology; 2017. [cited 2021 Mar 07].
Available from: http://resolver.tudelft.nl/uuid:b20ed8a4-b894-40ad-af43-a7f25fb18e85.
Council of Science Editors:
Floris CE(. Magnetically Driven Healing of Self-Healing Polymers. [Masters Thesis]. Delft University of Technology; 2017. Available from: http://resolver.tudelft.nl/uuid:b20ed8a4-b894-40ad-af43-a7f25fb18e85

Louisiana State University
4.
Yougoubare, Yves Quentin.
Programming and healing temperature effects on the efficiency of confined self-healing polymers.
Degree: MSME, Mechanical Engineering, 2012, Louisiana State University
URL: etd-11132012-132152
;
https://digitalcommons.lsu.edu/gradschool_theses/4231
► Shape memory polymers are smart materials capable of fixing a temporary shape and returning to their initial shape in response to an external stimulus. Since…
(more)
▼ Shape memory polymers are smart materials capable of fixing a temporary shape and returning to their initial shape in response to an external stimulus. Since the discovery and acknowledgment of their importance in 1960s, shape memory polymers have been the subject of tremendous and continuous attention. In a previous study conducted on a biomimetic shape memory polymer (SMP), the ability of a self-healing composite to heal, and to repair and restore structural-length scale damage using a close-then-heal (CTH) self-healing mechanism was examined and validated. The present study is purposed with investigation of the effects on healing efficiencies of the variation of temperature during both thermo-mechanical programming and shape recovery under three-dimensional (3-D) confinement. The polymer considered was a polystyrene shape memory polymer with 6% by volume of thermoplastic particle additives (copolyester) dispersed in the matrix. After fabrication, and determination of their glass transition temperature using DSC, the specimens were allowed to go through a strain-controlled programming at a wide range of temperatures (20°C, 45°C, 60°C, 82°C, 100°C and 140°C), at a pre-strain level of 15%. Fracture was imposed using a three-point flexure apparatus, and was followed by shape recovery at multiple temperatures (73°C, 100°C, 122°C and 148°C). The self-healing efficiency was evaluated per flexural strength immediately after programming and following healing. The results and deductions attained were verified using EDS analysis and SEM inspection. It is inferred from the study that the programming temperature only very slightly affects the recovered strength. Programming the specimen above its glass transition temperature provided a marginal gain in strength recovery. Shape recovery (healing) temperature, however, was found to have a significant impact on the self-healing efficiency. A sudden “boost” was noted around the melting temperature of the thermoplastics, with a significant increase in the healing efficiency past the bonding temperature of the copolymer. It was observed that programming above the glass transition temperature of the composite and healing above the melting point of the thermoplastic addives ensured a maximum healing efficiency of up to 63% for the material considered.
Subjects/Keywords: programming; healing; self-healing; biomimetic; temperature; polymer
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Yougoubare, Y. Q. (2012). Programming and healing temperature effects on the efficiency of confined self-healing polymers. (Masters Thesis). Louisiana State University. Retrieved from etd-11132012-132152 ; https://digitalcommons.lsu.edu/gradschool_theses/4231
Chicago Manual of Style (16th Edition):
Yougoubare, Yves Quentin. “Programming and healing temperature effects on the efficiency of confined self-healing polymers.” 2012. Masters Thesis, Louisiana State University. Accessed March 07, 2021.
etd-11132012-132152 ; https://digitalcommons.lsu.edu/gradschool_theses/4231.
MLA Handbook (7th Edition):
Yougoubare, Yves Quentin. “Programming and healing temperature effects on the efficiency of confined self-healing polymers.” 2012. Web. 07 Mar 2021.
Vancouver:
Yougoubare YQ. Programming and healing temperature effects on the efficiency of confined self-healing polymers. [Internet] [Masters thesis]. Louisiana State University; 2012. [cited 2021 Mar 07].
Available from: etd-11132012-132152 ; https://digitalcommons.lsu.edu/gradschool_theses/4231.
Council of Science Editors:
Yougoubare YQ. Programming and healing temperature effects on the efficiency of confined self-healing polymers. [Masters Thesis]. Louisiana State University; 2012. Available from: etd-11132012-132152 ; https://digitalcommons.lsu.edu/gradschool_theses/4231

Rochester Institute of Technology
5.
Rahman, Faiz Ur.
Resiliency in Deep Convolutional Neural Networks.
Degree: MS, Computer Engineering, 2018, Rochester Institute of Technology
URL: https://scholarworks.rit.edu/theses/9937
► The enormous success and popularity of deep convolutional neural networks for object detection has prompted their deployment in various real-world applications. However, their performance…
(more)
▼ The enormous success and popularity of deep convolutional neural networks for object detection has prompted their deployment in various real-world applications. However, their performance in the presence of hardware faults or damage that could occur in the field has not been studied. This thesis explores the resiliency of six popular network architectures for image classification, AlexNet, VGG16, ResNet, GoogleNet, SqueezeNet and YOLO9000, when subjected to various degrees of failures. We introduce failures in a deep network by dropping a percentage of weights at each layer. We then assess the effects of these failures on classification performance. We find the fitness of the weights and then dropped from least fit to most fit weights. Finally, we determine the ability of the network to
self-heal and recover its performance by retraining its healthy portions after partial damage. We try different methods to re-train the healthy portion by varying the optimizer. We also try to find the time and resources required for re-training. We also reduce the number of parameters in GoogleNet, VGG16 to the size of SqueezeNet and re-trained with varying percentage of dataset. This can be used as a network pruning method.
Advisors/Committee Members: Andreas Savakis.
Subjects/Keywords: DCNN; Resiliency; Self-healing
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Rahman, F. U. (2018). Resiliency in Deep Convolutional Neural Networks. (Masters Thesis). Rochester Institute of Technology. Retrieved from https://scholarworks.rit.edu/theses/9937
Chicago Manual of Style (16th Edition):
Rahman, Faiz Ur. “Resiliency in Deep Convolutional Neural Networks.” 2018. Masters Thesis, Rochester Institute of Technology. Accessed March 07, 2021.
https://scholarworks.rit.edu/theses/9937.
MLA Handbook (7th Edition):
Rahman, Faiz Ur. “Resiliency in Deep Convolutional Neural Networks.” 2018. Web. 07 Mar 2021.
Vancouver:
Rahman FU. Resiliency in Deep Convolutional Neural Networks. [Internet] [Masters thesis]. Rochester Institute of Technology; 2018. [cited 2021 Mar 07].
Available from: https://scholarworks.rit.edu/theses/9937.
Council of Science Editors:
Rahman FU. Resiliency in Deep Convolutional Neural Networks. [Masters Thesis]. Rochester Institute of Technology; 2018. Available from: https://scholarworks.rit.edu/theses/9937

University of Miami
6.
Wehbe, Yara.
Bio-Inspired Self-Healing Infrastructure Materials.
Degree: MS, Civil, Architectural and Environmental Engineering (Engineering), 2016, University of Miami
URL: https://scholarlyrepository.miami.edu/oa_theses/619
► The current state of our nation’s infrastructure was given a grade of D+ in 2013, which warrants immediate remedial actions to improve structural integrity…
(more)
▼ The current state of our nation’s infrastructure was given a grade of D+ in 2013, which warrants immediate remedial actions to improve structural integrity and ensure public safety. This has motivated intensive research aimed at enhancing the sustainability of infrastructure with the goal of reducing maintenance cost. Concrete is the most widely used infrastructure materials primarily due to its low cost and wide applicability. However, concrete is brittle and prone to crack formation due to mechanical loads and environmental conditions during its service life. Thus, innovative materials with
self-
healing capability provide a viable path towards mitigating crack related issues facing concrete infrastructure. In this dissertation, an overview of a bio-inspired
self-
healing methodology is presented. This methodology is based on microorganism induced calcium carbonate (CaCO
3) precipitation filling and binding cracks in the cementitious materials. The effect of addition of microorganisms and related materials on the hydration, compressive strength, transport, and microstructure of cementitious materials is evaluated. The influence of parameters affecting the morphology and chemical structure of CaCO
3 is investigated, using microscopy and analytical techniques, to establish the process-microstructure relations of CaCO
3.
Advisors/Committee Members: Ali Ghahremaninezhad, Landolf Rhode Barbarigos, Claudio Mazzotti.
Subjects/Keywords: Microorganisms; self-healing; concrete
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Wehbe, Y. (2016). Bio-Inspired Self-Healing Infrastructure Materials. (Thesis). University of Miami. Retrieved from https://scholarlyrepository.miami.edu/oa_theses/619
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Wehbe, Yara. “Bio-Inspired Self-Healing Infrastructure Materials.” 2016. Thesis, University of Miami. Accessed March 07, 2021.
https://scholarlyrepository.miami.edu/oa_theses/619.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Wehbe, Yara. “Bio-Inspired Self-Healing Infrastructure Materials.” 2016. Web. 07 Mar 2021.
Vancouver:
Wehbe Y. Bio-Inspired Self-Healing Infrastructure Materials. [Internet] [Thesis]. University of Miami; 2016. [cited 2021 Mar 07].
Available from: https://scholarlyrepository.miami.edu/oa_theses/619.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Wehbe Y. Bio-Inspired Self-Healing Infrastructure Materials. [Thesis]. University of Miami; 2016. Available from: https://scholarlyrepository.miami.edu/oa_theses/619
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
7.
Ribeiro de Souza, Lívia.
Design and synthesis of microcapsules using microfluidics for autonomic self-healing in cementitious materials.
Degree: PhD, 2017, University of Cambridge
URL: https://doi.org/10.17863/CAM.16673
;
https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.744322
► A capsule-based self-healing cementitious material, capable of autonomically repairing its own cracks, can extend the service life of concrete structures and decrease the costs associate…
(more)
▼ A capsule-based self-healing cementitious material, capable of autonomically repairing its own cracks, can extend the service life of concrete structures and decrease the costs associate with repair and maintenance actions. However, the size, shell thickness, shell material and mechanical properties of the capsules still need to be optimised to ensure self-healing performance. Thus, the objective of this research was to explore the controlled microfluidic encapsulation to investigate the production of microcapsules for physically triggered self-healing in cementitious materials. A flow-focusing microfluidic device was used to produce double emulsions to be selectively photopolymerised to generate a core-shell structure. Subsequently, the physical triggering was assessed by embedding the produced microcapsules in cement paste, fracturing it and observing the cracked surface in the SEM. The results showed the production of microcapsules with 80-140 μm of diameter with excellent control over size and shell thickness. Using water-in-oil-in-water (w/o/w) double emulsion, microcapsules were synthesised containing water, colloidal silica solution and sodium silicate solution as core material. In addition, an oil-in-oil-in-water (o/o/w) double emulsion was used to encapsulate mineral oil and emulsified healing agents. The formation of the core-shell structure with aqueous and organic cores was characterised using optical microscopy and SEM. It was demonstrated that the water is not retained inside of the capsule, resulting in the formation of dimples and buckled capsules, particularly for shells thickness ~7 μm. On the other hand, TGA confirmed the retention of mineral oil for shells thickness of ~2 μm and the encapsulation efficiency was demonstrated to be 66%. When the capsules were added to the cement paste, four key factors were observed to prevent physical triggering: (i) thick shells, (ii) buckling of thinner shells due to the loss of water core, (iii) mechanical properties and (iv) poor interfacial bonding. As a result, a mechanical characterisation of the shell material was performed, indicating brittle fracture at room temperature, reduced Young’s modulus when compared with cementitious matrix and stress at rupture of 15-36 MPa. In addition, an innovative methodology was proposed to functionalise the surface of the microcapsules with hydrophilic groups in order to increase the interfacial bonding between the cement paste and the microcapsules. Thus, microcapsules with low tensile strength, low shell thickness, organic core and good interfacial bonding were successfully synthesised and demonstrated to rupture upon crack formation. These results experimentally demonstrate the importance of reduced shell thickness, core retention and interfacial bonding as valuable guides during the design of microcapsules for physically triggered self-healing in cementitious materials.
Subjects/Keywords: 620.1; self-healing; microfluidics; microcapsules
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Ribeiro de Souza, L. (2017). Design and synthesis of microcapsules using microfluidics for autonomic self-healing in cementitious materials. (Doctoral Dissertation). University of Cambridge. Retrieved from https://doi.org/10.17863/CAM.16673 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.744322
Chicago Manual of Style (16th Edition):
Ribeiro de Souza, Lívia. “Design and synthesis of microcapsules using microfluidics for autonomic self-healing in cementitious materials.” 2017. Doctoral Dissertation, University of Cambridge. Accessed March 07, 2021.
https://doi.org/10.17863/CAM.16673 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.744322.
MLA Handbook (7th Edition):
Ribeiro de Souza, Lívia. “Design and synthesis of microcapsules using microfluidics for autonomic self-healing in cementitious materials.” 2017. Web. 07 Mar 2021.
Vancouver:
Ribeiro de Souza L. Design and synthesis of microcapsules using microfluidics for autonomic self-healing in cementitious materials. [Internet] [Doctoral dissertation]. University of Cambridge; 2017. [cited 2021 Mar 07].
Available from: https://doi.org/10.17863/CAM.16673 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.744322.
Council of Science Editors:
Ribeiro de Souza L. Design and synthesis of microcapsules using microfluidics for autonomic self-healing in cementitious materials. [Doctoral Dissertation]. University of Cambridge; 2017. Available from: https://doi.org/10.17863/CAM.16673 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.744322
8.
Ribeiro de Souza, Lívia.
Design and synthesis of microcapsules using microfluidics for autonomic self-healing in cementitious materials.
Degree: PhD, 2017, University of Cambridge
URL: https://www.repository.cam.ac.uk/handle/1810/269746
► A capsule-based self-healing cementitious material, capable of autonomically repairing its own cracks, can extend the service life of concrete structures and decrease the costs associate…
(more)
▼ A capsule-based self-healing cementitious material, capable of autonomically repairing its own cracks, can extend the service life of concrete structures and decrease the costs associate with repair and maintenance actions. However, the size, shell thickness, shell material and mechanical properties of the capsules still need to be optimised to ensure self-healing performance. Thus, the objective of this research was to explore the controlled microfluidic encapsulation to investigate the production of microcapsules for physically triggered self-healing in cementitious materials. A flow-focusing microfluidic device was used to produce double emulsions to be selectively photopolymerised to generate a core-shell structure. Subsequently, the physical triggering was assessed by embedding the produced microcapsules in cement paste, fracturing it and observing the cracked surface in the SEM. The results showed the production of microcapsules with 80-140 μm of diameter with excellent control over size and shell thickness. Using water-in-oil-in-water (w/o/w) double emulsion, microcapsules were synthesised containing water, colloidal silica solution and sodium silicate solution as core material. In addition, an oil-in-oil-in-water (o/o/w) double emulsion was used to encapsulate mineral oil and emulsified healing agents. The formation of the core-shell structure with aqueous and organic cores was characterised using optical microscopy and SEM. It was demonstrated that the water is not retained inside of the capsule, resulting in the formation of dimples and buckled capsules, particularly for shells thickness ~7 μm. On the other hand, TGA confirmed the retention of mineral oil for shells thickness of ~2 μm and the encapsulation efficiency was demonstrated to be 66%. When the capsules were added to the cement paste, four key factors were observed to prevent physical triggering: (i) thick shells, (ii) buckling of thinner shells due to the loss of water core, (iii) mechanical properties and (iv) poor interfacial bonding. As a result, a mechanical characterisation of the shell material was performed, indicating brittle fracture at room temperature, reduced Young’s modulus when compared with cementitious matrix and stress at rupture of 15-36 MPa. In addition, an innovative methodology was proposed to functionalise the surface of the microcapsules with hydrophilic groups in order to increase the interfacial bonding between the cement paste and the microcapsules. Thus, microcapsules with low tensile strength, low shell thickness, organic core and good interfacial bonding were successfully synthesised and demonstrated to rupture upon crack formation. These results experimentally demonstrate the importance of reduced shell thickness, core retention and interfacial bonding as valuable guides during the design of microcapsules for physically triggered self-healing in cementitious materials.
Subjects/Keywords: self-healing; microfluidics; microcapsules
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Ribeiro de Souza, L. (2017). Design and synthesis of microcapsules using microfluidics for autonomic self-healing in cementitious materials. (Doctoral Dissertation). University of Cambridge. Retrieved from https://www.repository.cam.ac.uk/handle/1810/269746
Chicago Manual of Style (16th Edition):
Ribeiro de Souza, Lívia. “Design and synthesis of microcapsules using microfluidics for autonomic self-healing in cementitious materials.” 2017. Doctoral Dissertation, University of Cambridge. Accessed March 07, 2021.
https://www.repository.cam.ac.uk/handle/1810/269746.
MLA Handbook (7th Edition):
Ribeiro de Souza, Lívia. “Design and synthesis of microcapsules using microfluidics for autonomic self-healing in cementitious materials.” 2017. Web. 07 Mar 2021.
Vancouver:
Ribeiro de Souza L. Design and synthesis of microcapsules using microfluidics for autonomic self-healing in cementitious materials. [Internet] [Doctoral dissertation]. University of Cambridge; 2017. [cited 2021 Mar 07].
Available from: https://www.repository.cam.ac.uk/handle/1810/269746.
Council of Science Editors:
Ribeiro de Souza L. Design and synthesis of microcapsules using microfluidics for autonomic self-healing in cementitious materials. [Doctoral Dissertation]. University of Cambridge; 2017. Available from: https://www.repository.cam.ac.uk/handle/1810/269746

University of Manitoba
9.
Yu, Lianlian Jr.
Cell-compatible multi-functional crosslinker-based hydrogels for tissue engineering.
Degree: Textile Sciences, 2015, University of Manitoba
URL: http://hdl.handle.net/1993/30180
► The thesis showed preliminary evaluation of novel biodegradable and biocompatible agmatine-containing PAA crosslinkers. Hydrogels fabricated by this crosslinker can obtain controllable stiffness and excellent cell…
(more)
▼ The thesis showed preliminary evaluation of novel biodegradable and biocompatible agmatine-containing PAA crosslinkers. Hydrogels fabricated by this crosslinker can obtain controllable stiffness and excellent cell adhesion. The PAA contained thermo-sensitive hydrogel reported here is first employed as filler for depressed defects in rats. Results showed that such hydrogel can be injectable and biocompatible, might become a new material in plastic surgery in the clinic. The thesis also demonstrated a novel macro gels with
self-
healing capability and biocompatibility. The reversible photodimerization and photocleavage reactivity of coumarin has been successfully imparted to the polymer.
Advisors/Committee Members: Zhong, Wen (Textile Sciences) Xing, Malcolm (Mechanical Engineering) (supervisor), Wang, Quan (Mechanical Engineering) Cai, Jun (Electrical and Computer Engineering) (examiningcommittee).
Subjects/Keywords: biocompatible; self-healing; hydrogel; crosslinker
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Yu, L. J. (2015). Cell-compatible multi-functional crosslinker-based hydrogels for tissue engineering. (Masters Thesis). University of Manitoba. Retrieved from http://hdl.handle.net/1993/30180
Chicago Manual of Style (16th Edition):
Yu, Lianlian Jr. “Cell-compatible multi-functional crosslinker-based hydrogels for tissue engineering.” 2015. Masters Thesis, University of Manitoba. Accessed March 07, 2021.
http://hdl.handle.net/1993/30180.
MLA Handbook (7th Edition):
Yu, Lianlian Jr. “Cell-compatible multi-functional crosslinker-based hydrogels for tissue engineering.” 2015. Web. 07 Mar 2021.
Vancouver:
Yu LJ. Cell-compatible multi-functional crosslinker-based hydrogels for tissue engineering. [Internet] [Masters thesis]. University of Manitoba; 2015. [cited 2021 Mar 07].
Available from: http://hdl.handle.net/1993/30180.
Council of Science Editors:
Yu LJ. Cell-compatible multi-functional crosslinker-based hydrogels for tissue engineering. [Masters Thesis]. University of Manitoba; 2015. Available from: http://hdl.handle.net/1993/30180

Delft University of Technology
10.
Murali, Sneha (author).
Micromechanical Modelling of Fracture Behaviour in Self-Healing Thermal Barrier Coatings.
Degree: 2017, Delft University of Technology
URL: http://resolver.tudelft.nl/uuid:eaa0262e-1fb6-4439-b40d-9840f04e9131
► Crack initiation and propagation in composite structures exists as a prominent knowledge gap in computational fracture mechanics. Prior to the development and implementation of fracture…
(more)
▼ Crack initiation and propagation in composite structures exists as a prominent knowledge gap in computational fracture mechanics. Prior to the development and implementation of fracture modules in FEM solvers, most studies were constrained to simple geometries and load cases. The set of parametric studies that constitute this thesis aims to partially fill this knowledge gap by studying the fracture behavior of air-plasma sprayed thermal barrier coatings (APS-TBCs) using cohesive zone modelling (CZM) in conjunction with FEM. Two-dimensional projections of the TBC microstructures were developed and subjected to a thermomechanical analysis involving thermal strains between the different components of the TBC system. The parametric study was split into three sections. The preliminary study, set O, was executed to discern the most appropriate set of boundary conditions that would produce realistic crack patterns in an expedient manner. Set A and Set B studied the fracture behaviour of conventional TBCs and the recently developed
self-
healing TBC composite, comprised of lamellae and pores and for Set B,
self-
healing particles. Qualitative observations reveal the influence of feature dimensions and relative placement to one another. The results appear to indicate that TBC top-coats that are comprised of finer lamellae exhibit higher fracture resistance on both conventional and
self-
healing systems, and that smaller particles in
self-
healing systems mitigate damage caused by pores less than larger particles.
Advisors/Committee Members: van der Zwaag, Sybrand (mentor), Turteltaub, Sergio (mentor), Chen, Boyang (graduation committee), Delft University of Technology (degree granting institution).
Subjects/Keywords: fracture behaviour; Self-healing; coatings
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Murali, S. (. (2017). Micromechanical Modelling of Fracture Behaviour in Self-Healing Thermal Barrier Coatings. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:eaa0262e-1fb6-4439-b40d-9840f04e9131
Chicago Manual of Style (16th Edition):
Murali, Sneha (author). “Micromechanical Modelling of Fracture Behaviour in Self-Healing Thermal Barrier Coatings.” 2017. Masters Thesis, Delft University of Technology. Accessed March 07, 2021.
http://resolver.tudelft.nl/uuid:eaa0262e-1fb6-4439-b40d-9840f04e9131.
MLA Handbook (7th Edition):
Murali, Sneha (author). “Micromechanical Modelling of Fracture Behaviour in Self-Healing Thermal Barrier Coatings.” 2017. Web. 07 Mar 2021.
Vancouver:
Murali S(. Micromechanical Modelling of Fracture Behaviour in Self-Healing Thermal Barrier Coatings. [Internet] [Masters thesis]. Delft University of Technology; 2017. [cited 2021 Mar 07].
Available from: http://resolver.tudelft.nl/uuid:eaa0262e-1fb6-4439-b40d-9840f04e9131.
Council of Science Editors:
Murali S(. Micromechanical Modelling of Fracture Behaviour in Self-Healing Thermal Barrier Coatings. [Masters Thesis]. Delft University of Technology; 2017. Available from: http://resolver.tudelft.nl/uuid:eaa0262e-1fb6-4439-b40d-9840f04e9131

Delft University of Technology
11.
Roghair, Charlotte (author).
Self-healing strain hardening concrete: Demonstrator Bridge TU Delft.
Degree: 2017, Delft University of Technology
URL: http://resolver.tudelft.nl/uuid:c08e4517-10ab-4710-bfc6-43a2baccebf5
► In the year 2006, Delft University of Technology started researching ‘Strain hardening Self-healing concrete’ (SSC). The reason for this research was the desire to increase…
(more)
▼ In the year 2006, Delft University of Technology started researching ‘Strain hardening
Self-
healing concrete’ (SSC). The reason for this research was the desire to increase the durability of concrete. This depends mostly on the reinforcement. To ensure a certain lifespan of concrete structures, a minimum cover depth has to be applied. However, cracks occur in the concrete and cause a significant decrease in durability. Research by M. Sierra-Beltran in 2014 resulted in SSC that has the capacity to seal these cracks due to the addition of a
healing agent. Also, fibers are added to keep the cracks small and speed up the
healing process. In this thesis SSC is compared with traditional concrete (TC). A structural design is made with both materials based on assumed characteristics. Also, tests are performed to check whether those assumptions are right and a short calculation with the results is made. When making a structural design with the assumed characteristics for TC and SSC, one finds that it is possible to design more slenderly with SSC than with TC. This is caused by the decrease in cover depth and the absence of extra reinforcement to control the crack width. The only exception is the height of the bridge deck; the height of the bridge deck is smaller in a TC design, caused by the low Young’s modulus of SSC. The positive effect of SSC is expected to be most noticeable on the bridge deck at the locations with negative bending moments. Other locations where the positive effects can be noticed are at the beams and the tensile bars. The material costs of the bridge designed with SSC are significantly higher than the material costs of the bridge designed with TC. However, it is expected that the maintenance costs of the SSC bridge are much lower. The results of the tests for the structural characteristics show that SSC mortar has a lower compressive strength and a lower Young’s modulus than TC mortar. Especially, the lower Young’s modulus affects the structural design. The flexural strength of SSC mortar is higher than the flexural strength of TC. The tests on durability give positive results. The chloride migration shows that, before
healing, the SSC and TC have similar migration coefficients. However, after the
healing period the migration coefficient of the SSC is lower than the migration coefficient of TC, at the location of the crack as well as the uncracked surface. Although, the difference is not as large as expected, this might change with longer
healing periods. Therefore, it is recommended to do more tests with longer
healing periods. When making a short calculation with the characteristics found in the results of the test, one sees that the height of the bridge deck and the beams increases a bit more than assumed due to the lower Young’s modulus. Furthermore, no large changes are found. Therefore, it is recommended to research the possibility of changing the mixture in a way that the Young’s modulus is increased.
Advisors/Committee Members: Jonkers, H.M. (mentor), Schlangen, E. (mentor), Schipper, Roel (mentor), Lukovic, Mladena (mentor), Delft University of Technology (degree granting institution).
Subjects/Keywords: Self-healing; Strain hardening; concrete
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Roghair, C. (. (2017). Self-healing strain hardening concrete: Demonstrator Bridge TU Delft. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:c08e4517-10ab-4710-bfc6-43a2baccebf5
Chicago Manual of Style (16th Edition):
Roghair, Charlotte (author). “Self-healing strain hardening concrete: Demonstrator Bridge TU Delft.” 2017. Masters Thesis, Delft University of Technology. Accessed March 07, 2021.
http://resolver.tudelft.nl/uuid:c08e4517-10ab-4710-bfc6-43a2baccebf5.
MLA Handbook (7th Edition):
Roghair, Charlotte (author). “Self-healing strain hardening concrete: Demonstrator Bridge TU Delft.” 2017. Web. 07 Mar 2021.
Vancouver:
Roghair C(. Self-healing strain hardening concrete: Demonstrator Bridge TU Delft. [Internet] [Masters thesis]. Delft University of Technology; 2017. [cited 2021 Mar 07].
Available from: http://resolver.tudelft.nl/uuid:c08e4517-10ab-4710-bfc6-43a2baccebf5.
Council of Science Editors:
Roghair C(. Self-healing strain hardening concrete: Demonstrator Bridge TU Delft. [Masters Thesis]. Delft University of Technology; 2017. Available from: http://resolver.tudelft.nl/uuid:c08e4517-10ab-4710-bfc6-43a2baccebf5

University of Illinois – Urbana-Champaign
12.
Jones, Amanda Rose.
Solvent-based self-healing approaches for fiber-reinforced composites.
Degree: PhD, Theoretical & Applied Mechans, 2015, University of Illinois – Urbana-Champaign
URL: http://hdl.handle.net/2142/78389
► Damage in composite materials spans many length scales and is often difficult to detect or costly to repair. The incorporation of self-healing functionality in composite…
(more)
▼ Damage in composite materials spans many length scales and is often difficult to detect or costly to repair. The incorporation of
self-
healing functionality in composite materials has the potential to greatly extend material lifetime and reliability. Although there has been remarkable progress in
self-
healing polymers over the the past decade,
self-repair in fiber-reinforced composite materials presents significant technical challenges due to stringent manufacturing and performance requirements. For high performance, fiber-reinforced composites, the
self-
healing components need to survive high temperature processing, reside in matrix interstitial regions to retain a high fiber volume fraction, and have minimal impact on the mechanical properties of the host material. This dissertation explores several microencapsulated solvent-based
self-
healing approaches for fiber-reinforced composites at the fiber/ matrix interface size scale as well as matrix cracking. Systems are initially developed for room temperature cured epoxies/ glass fiber interfaces and successfully transitioned to carbon fibers and high temperature-cured, thermoplastic-toughened matrices.
Full recovery of interfacial bond strength after complete fiber/matrix debonding is achieved with a microencapsulated solvent-based
healing chemistry. The surface of a glass fiber is functionalized with microcapsules containing varying concentrations of reactive epoxy resin and ethyl phenyl acetate (EPA) solvent. Microbond specimens consisting of a single fiber and a microdroplet of epoxy are cured at 35C, tested, and the interfacial shear strengths (IFSS) during the initial (virgin) debonding and subsequent
healing events are measured. Debonding of the fiber/matrix interface ruptures the capsules, releasing resin and solvent into the crack plane. The solvent swells the matrix, initiating transport of residual amine functionality for further curing with the epoxy resin delivered to the crack plane. Using a resin-solvent ratio of 3:97, a maximum of 100% IFSS recovery is achieved – a significant enhancement over prior work that reported 44% average recovery of IFSS with microencapsulated dicyclopentadiene (DCPD) monomer and Grubbs' 1st Generation catalyst
healing agents. The effects of capsule coverage, resin-solvent ratio, and capsule size on recovery of IFSS are also determined, providing guidelines for integration of this
healing system into high fiber volume fraction structural composites. High
healing efficiencies are achieved with capsules as small as 0.6 µm average diameter.
The resin-solvent
healing system is then extended to repair of a carbon fiber/epoxy interfacial bond. A binder is necessary to improve the retention of capsules on the carbon fiber surface. Two different methods for applying a binder to a carbon fiber surface are investigated.
Healing efficiency is assessed by recovery of IFSS of a single functionalized fiber embedded in an epoxy microbond specimen. The two binder protocols produce comparable results, both…
Advisors/Committee Members: Sottos, Nancy R. (advisor), Sottos, Nancy R. (Committee Chair), White, Scott R. (committee member), Geubelle, Philippe H. (committee member), Ewoldt, Randy H. (committee member).
Subjects/Keywords: self-healing; polymer matrix composites
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Jones, A. R. (2015). Solvent-based self-healing approaches for fiber-reinforced composites. (Doctoral Dissertation). University of Illinois – Urbana-Champaign. Retrieved from http://hdl.handle.net/2142/78389
Chicago Manual of Style (16th Edition):
Jones, Amanda Rose. “Solvent-based self-healing approaches for fiber-reinforced composites.” 2015. Doctoral Dissertation, University of Illinois – Urbana-Champaign. Accessed March 07, 2021.
http://hdl.handle.net/2142/78389.
MLA Handbook (7th Edition):
Jones, Amanda Rose. “Solvent-based self-healing approaches for fiber-reinforced composites.” 2015. Web. 07 Mar 2021.
Vancouver:
Jones AR. Solvent-based self-healing approaches for fiber-reinforced composites. [Internet] [Doctoral dissertation]. University of Illinois – Urbana-Champaign; 2015. [cited 2021 Mar 07].
Available from: http://hdl.handle.net/2142/78389.
Council of Science Editors:
Jones AR. Solvent-based self-healing approaches for fiber-reinforced composites. [Doctoral Dissertation]. University of Illinois – Urbana-Champaign; 2015. Available from: http://hdl.handle.net/2142/78389

University of Illinois – Urbana-Champaign
13.
Hart, Kevin Richard.
Self-healing of impact damage in vascular fiber-reinforced composites.
Degree: PhD, Aerospace Engineering, 2016, University of Illinois – Urbana-Champaign
URL: http://hdl.handle.net/2142/90721
► Vascular fiber-reinforced composites mimic biological systems to allow pluripotent multifunctional behavior in synthetic engineering materials. In this dissertation, methods are explored for recovering mechanical performance…
(more)
▼ Vascular fiber-reinforced composites mimic biological systems to allow pluripotent multifunctional behavior in synthetic engineering materials. In this dissertation, methods are explored for recovering mechanical performance of a composite material after an out-of-plane impact event using vascular
self-
healing technologies. To date, the critical damage modes which occur during out-of-plane impact that most significantly contribute to reductions in post-impact performance have not been identified and methods for delivering
healing agents to those critical regions using internal vascular networks has not been explored. In this dissertation, out-of-plane impact damage is quantified and correlated with reductions in post-impact mechanical performance. Additionally,
healing of impact-induced damage is demonstrated using vascular delivery of epoxy and amine based agents. An alternate
healing agent chemistry for potential use in vascular
healing schemes is also discussed. This work is the first to detail methods for
healing impact-induced damage in vascular composites using segregated
healing agent components and paves the way for the adoption of
self-
healing vascular materials in commercial applications.
Advisors/Committee Members: White, Scott (advisor), White, Scott (Committee Chair), Sottos, Nancy (committee member), Geubelle, Philippe H. (committee member), Lambros, John (committee member).
Subjects/Keywords: Self-Healing; Vascular; Composites
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Hart, K. R. (2016). Self-healing of impact damage in vascular fiber-reinforced composites. (Doctoral Dissertation). University of Illinois – Urbana-Champaign. Retrieved from http://hdl.handle.net/2142/90721
Chicago Manual of Style (16th Edition):
Hart, Kevin Richard. “Self-healing of impact damage in vascular fiber-reinforced composites.” 2016. Doctoral Dissertation, University of Illinois – Urbana-Champaign. Accessed March 07, 2021.
http://hdl.handle.net/2142/90721.
MLA Handbook (7th Edition):
Hart, Kevin Richard. “Self-healing of impact damage in vascular fiber-reinforced composites.” 2016. Web. 07 Mar 2021.
Vancouver:
Hart KR. Self-healing of impact damage in vascular fiber-reinforced composites. [Internet] [Doctoral dissertation]. University of Illinois – Urbana-Champaign; 2016. [cited 2021 Mar 07].
Available from: http://hdl.handle.net/2142/90721.
Council of Science Editors:
Hart KR. Self-healing of impact damage in vascular fiber-reinforced composites. [Doctoral Dissertation]. University of Illinois – Urbana-Champaign; 2016. Available from: http://hdl.handle.net/2142/90721

University of Illinois – Urbana-Champaign
14.
Gergely, Ryan C.
Regeneration of impact puncture and abrasive damage in polymers.
Degree: PhD, Theoretical & Applied Mechans, 2016, University of Illinois – Urbana-Champaign
URL: http://hdl.handle.net/2142/92999
► Engineering materials experience damage during their lifetime, which reduces their ability to carry load and maintain structural integrity. Self-healing materials have been developed to mitigate…
(more)
▼ Engineering materials experience damage during their lifetime, which reduces their ability to carry load and maintain structural integrity.
Self-
healing materials have been developed to mitigate the effects of damage, however, there are currently limitations in the healable length scale of damage that can be addressed. Overcoming this challenge requires a shift from simply re-bonding of cracks, which describes many current
self-
healing systems. Features of biological regeneration can be used to inspire approaches to address larger length scales of damage and achieve repeatable replacement of damaged or lost material. This thesis focuses on development of strategies for synthetic regeneration in polymers.
Concepts inspired by biological regeneration are applied to the problem of restoration of lost (damage) volume. Two specific damage modes that result in volumetric material loss are considered: impact puncture damage, and abrasive removal of a coating. This thesis focuses on demonstrating regeneration in response to these damage modes, and establishes experimental protocols for evaluation of performance. In addition, advancements are made in the fabrication of microvascular polymeric materials.
The transverse impact of plates of vascularized transparent polymer results in a multiscale damage pattern in which a centimeter-scale central puncture of lost (damage) volume is opened up where the projectile is incident, as well as a network of radiating microcracks emanating from the impact point. An embedded microvascular network facilitates the delivery of a novel two-stage
healing agent to the site of damage in order to restore the lost damage volume. The performance of the restored specimens is evaluated by both seal testing under pressurization and impact energy absorption under repeat impact testing. Factors affecting the impact restoration performance are explored. The formulation of the two-stage
healing agents is modulated to improve impact energy absorption. Sealing of 100% of samples is achieved by a hybrid system incorporating both a vascular network and microcapsules to separately target large damage (central puncture) and small microcracks.
Abrasive damage can result in complete removal of a protective coating and exposure of the underlying substrate. To regenerate the coating after damage, a single-part
healing agent is released upon removal of the coating, and cures when exposed to simulated ambient sunlight. The regenerated coating is evaluated by hardness testing. Coating regeneration is facilitated by a pressurized microvascular system containing a compliant protective (UV blocking) valve. The polymeric coating is regenerated with the same hardness after large-scale removal, for four repetitive damage events (abrasion).
To improve control of the volume of
healing agent released in response to damage, an accumulator is developed for incorporation into microvascular coating systems. The accumulator enables the localized storage of a prescribed volume of
healing agent. Upon damage, this stored volume…
Advisors/Committee Members: White, Scott R (advisor), Sottos, Nancy R (Committee Chair), Freund, Jonathan B (committee member), Ewoldt, Randy H (committee member).
Subjects/Keywords: Polymers; Self-Healing; Regeneration; Microvascular
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Gergely, R. C. (2016). Regeneration of impact puncture and abrasive damage in polymers. (Doctoral Dissertation). University of Illinois – Urbana-Champaign. Retrieved from http://hdl.handle.net/2142/92999
Chicago Manual of Style (16th Edition):
Gergely, Ryan C. “Regeneration of impact puncture and abrasive damage in polymers.” 2016. Doctoral Dissertation, University of Illinois – Urbana-Champaign. Accessed March 07, 2021.
http://hdl.handle.net/2142/92999.
MLA Handbook (7th Edition):
Gergely, Ryan C. “Regeneration of impact puncture and abrasive damage in polymers.” 2016. Web. 07 Mar 2021.
Vancouver:
Gergely RC. Regeneration of impact puncture and abrasive damage in polymers. [Internet] [Doctoral dissertation]. University of Illinois – Urbana-Champaign; 2016. [cited 2021 Mar 07].
Available from: http://hdl.handle.net/2142/92999.
Council of Science Editors:
Gergely RC. Regeneration of impact puncture and abrasive damage in polymers. [Doctoral Dissertation]. University of Illinois – Urbana-Champaign; 2016. Available from: http://hdl.handle.net/2142/92999

Louisiana State University
15.
Gilford III, James.
Microencapsulation of self-healing concrete properties.
Degree: MSES, Construction Engineering and Management, 2012, Louisiana State University
URL: etd-07052012-110306
;
https://digitalcommons.lsu.edu/gradschool_theses/194
► ABSTRACT Recent studies in the literature have demonstrated the ability of self-healing processes to be effective in enhancing the overall life of concrete. The main…
(more)
▼ ABSTRACT Recent studies in the literature have demonstrated the ability of self-healing processes to be effective in enhancing the overall life of concrete. The main goal of this project is to evaluate and to control specific parameters for the production of an effective self-healing matrix that can be utilized within the application of self-healing concrete. Therefore, the project objective is to synthesize microcapsules using dicyclopentadine and sodium silicate and to evaluate the effects of pH, temperature, and agitation rate on microcapsule morphology. The microcapsule diameter, yield analysis, and shell thickness were characterized using scanning electron microscopy. During the experimental analysis, it was determined that temperature possesses a direct relationship with the pH for both sodium silicate and DCDP. As the temperature increased during the trials, the pH decreased. Temperature had a direct impact on the forming of the wall and core during the interfacial polymerization phase. Although the ability to maintain this consistency with the pH is important and essential, agitation rate is the key factor that controls the microcapsule capsule diameter size. As the agitation rate is increased, the microcapsule diameter size will decrease. If the agitation rate decreases, the microcapsules will become larger. Sodium silicate, however, was not consistent with the normal parameter matrix, due to its alkaline nature. As the agitation rate increased, the size remained normal and consistent. This was due to the attempt to stabilize the sodium silicate solution for the micro-encapsulation procedure of Urea-Formaldehyde. Nevertheless, both sodium silicate and DCDP trials were successful in meeting the overall objective of this thesis, which was to control the performance parameters of the two self-healing methods.
Subjects/Keywords: Self-Healing Concrete; Techniques
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Gilford III, J. (2012). Microencapsulation of self-healing concrete properties. (Masters Thesis). Louisiana State University. Retrieved from etd-07052012-110306 ; https://digitalcommons.lsu.edu/gradschool_theses/194
Chicago Manual of Style (16th Edition):
Gilford III, James. “Microencapsulation of self-healing concrete properties.” 2012. Masters Thesis, Louisiana State University. Accessed March 07, 2021.
etd-07052012-110306 ; https://digitalcommons.lsu.edu/gradschool_theses/194.
MLA Handbook (7th Edition):
Gilford III, James. “Microencapsulation of self-healing concrete properties.” 2012. Web. 07 Mar 2021.
Vancouver:
Gilford III J. Microencapsulation of self-healing concrete properties. [Internet] [Masters thesis]. Louisiana State University; 2012. [cited 2021 Mar 07].
Available from: etd-07052012-110306 ; https://digitalcommons.lsu.edu/gradschool_theses/194.
Council of Science Editors:
Gilford III J. Microencapsulation of self-healing concrete properties. [Masters Thesis]. Louisiana State University; 2012. Available from: etd-07052012-110306 ; https://digitalcommons.lsu.edu/gradschool_theses/194

Purdue University
16.
Johnston, Michael Laird.
A Bio-Inspired Self-Healing Polymer System for Sustainable Plastics.
Degree: PhD, Materials Engineering, 2015, Purdue University
URL: https://docs.lib.purdue.edu/open_access_dissertations/1304
► Studying how marine organisms make tough biologic materials that autonomously heal allows us to integrate this biological self-healing motif into synthetic biomimetic polymers. These types…
(more)
▼ Studying how marine organisms make tough biologic materials that autonomously heal allows us to integrate this biological
self-
healing motif into synthetic biomimetic polymers. These types of polymers will be used to develop components with greater fatigue life and toughness, promoting greater resource sustainability by reducing plastic consumption. The amino acid 3,4-dihydroxyphenylalanine (DOPA) grants marine mussels the ability to strongly affix themselves to the rocks under water by forming strong reversible bonds with their environment. Poly[(3,4-dihydroxystyrene)-co-styrene)] (P[3,4-DHS-S]) is a synthetic polymer mimic of DOPA with chemical structure similar to polystyrene (PS) with a potential
self-
healing mechanism. This intrinsic
self-
healing mechanism works to toughen and reform bonds to inhibit or retard crack propagation without external stimuli and energy. This work investigates the critical stress intensity for propagating preexisting cracks induced by a Vickers indentation in P[3,4-DHS-S], and the effects that different cross-linking agents have on crack growth within the polymer matrix. A Life Cycle Assessment (LCA) is also performed to give component designers supplemental information needed to evaluate any differences between using P[3,4-DHS-S] as an alternative to PS in terms of environmental and economic sustainability.
Advisors/Committee Members: John E. Blendell, Jonathan J. Wilker, Jeffrey P. Youngblood, Rodney W. Trice.
Subjects/Keywords: Fracture; Polymer; Self-Healing; Sustainability
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to Zotero / EndNote / Reference
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APA (6th Edition):
Johnston, M. L. (2015). A Bio-Inspired Self-Healing Polymer System for Sustainable Plastics. (Doctoral Dissertation). Purdue University. Retrieved from https://docs.lib.purdue.edu/open_access_dissertations/1304
Chicago Manual of Style (16th Edition):
Johnston, Michael Laird. “A Bio-Inspired Self-Healing Polymer System for Sustainable Plastics.” 2015. Doctoral Dissertation, Purdue University. Accessed March 07, 2021.
https://docs.lib.purdue.edu/open_access_dissertations/1304.
MLA Handbook (7th Edition):
Johnston, Michael Laird. “A Bio-Inspired Self-Healing Polymer System for Sustainable Plastics.” 2015. Web. 07 Mar 2021.
Vancouver:
Johnston ML. A Bio-Inspired Self-Healing Polymer System for Sustainable Plastics. [Internet] [Doctoral dissertation]. Purdue University; 2015. [cited 2021 Mar 07].
Available from: https://docs.lib.purdue.edu/open_access_dissertations/1304.
Council of Science Editors:
Johnston ML. A Bio-Inspired Self-Healing Polymer System for Sustainable Plastics. [Doctoral Dissertation]. Purdue University; 2015. Available from: https://docs.lib.purdue.edu/open_access_dissertations/1304

Delft University of Technology
17.
Witjaksono, Muhammad (author).
Comparative Study of Self Sealing and Self Healing in Clay and Concrete.
Degree: 2020, Delft University of Technology
URL: http://resolver.tudelft.nl/uuid:d59c9eb0-5cf5-4760-96ee-00f87679147a
► Study of self-sealing and self-healing in clay is a fascinating topic which can be applied in many fields namely in construction sector or as the…
(more)
▼ Study of self-sealing and self-healing in clay is a fascinating topic which can be applied in many fields namely in construction sector or as the underground nuclear waste repository. However, lack of references still hinders the advancement of such field. Meanwhile, more advance researches are available for self-sealing and self-healing in concrete. Therefore, this project is held to find whether any valuable lessons from extensive researches of self-sealing and self-healing in concrete which can be applied to the development of the study in clay. This research is a comparative literature study of self-sealing and self healing mechanism between clay and concrete based on four aspects i.e. hydraulic, thermal, chemical and mechanical which based on the published papers from scientific journals and books. In terms of hydraulic aspect, hydraulic gradient plays an important role for sealing and healing mechanism in both clay and concrete. For thermal aspect, hydraulic conductivity is not affected by the temperature increased in clay while sealing and healing rate are improved for the similar condition in concrete. In chemical aspect, high pH environment increases sealing rate of concrete while high salinity decreases the capacity of sealing and healing of clay. For mechanical aspect, both concrete and clay experience a decreasing hydraulic conductivity under increasing confining stress. All of the results showed that both clay and concrete experience self-sealing and self healing mechanism with different influences by each aforementioned aspect.
Final report of Additional Graduation Work (AES4011-10)
Advisors/Committee Members: Dieudonné, Anne-Catherine (mentor), Gebert, Julia (graduation committee), Delft University of Technology (degree granting institution).
Subjects/Keywords: Clay; Concrete; Self-healing; Self-sealing
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Witjaksono, M. (. (2020). Comparative Study of Self Sealing and Self Healing in Clay and Concrete. (Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:d59c9eb0-5cf5-4760-96ee-00f87679147a
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Witjaksono, Muhammad (author). “Comparative Study of Self Sealing and Self Healing in Clay and Concrete.” 2020. Thesis, Delft University of Technology. Accessed March 07, 2021.
http://resolver.tudelft.nl/uuid:d59c9eb0-5cf5-4760-96ee-00f87679147a.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Witjaksono, Muhammad (author). “Comparative Study of Self Sealing and Self Healing in Clay and Concrete.” 2020. Web. 07 Mar 2021.
Vancouver:
Witjaksono M(. Comparative Study of Self Sealing and Self Healing in Clay and Concrete. [Internet] [Thesis]. Delft University of Technology; 2020. [cited 2021 Mar 07].
Available from: http://resolver.tudelft.nl/uuid:d59c9eb0-5cf5-4760-96ee-00f87679147a.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Witjaksono M(. Comparative Study of Self Sealing and Self Healing in Clay and Concrete. [Thesis]. Delft University of Technology; 2020. Available from: http://resolver.tudelft.nl/uuid:d59c9eb0-5cf5-4760-96ee-00f87679147a
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
18.
Doran, Martin.
Developing a generic architecture for autonomic fault handling in mobile robots.
Degree: PhD, 2020, Ulster University
URL: https://pure.ulster.ac.uk/en/studentTheses/7b7ef4c8-764d-4539-8fef-734208b561c7
;
https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.817572
► The Autonomic Computing paradigm was first presented almost 18 years ago as a 20-30 year long research agenda. Organizations like NASA, have explored the possibilities…
(more)
▼ The Autonomic Computing paradigm was first presented almost 18 years ago as a 20-30 year long research agenda. Organizations like NASA, have explored the possibilities of using autonomic systems in their future missions due to vast distances experienced in space exploration. Planetary and mobile robots operate in hostile environments and because of their remote location, human intervention for repairs is not possible. Hardware devices, like mobile robots, are susceptible to internal and external environmental changes, which can lead to faults occurring. Some research has been conducted in terms of handling faults in mobile robots but there is no generic autonomic model that can be used for any type of system fault, in any type of mobile robot. This Thesis describes a generic autonomic architecture for use in developing systems for managing hardware faults in mobile robots. Using autonomic principles, this Thesis focuses on how to detect faults within a mobile robot and how specialised algorithms can be deployed to compensate for the faults discovered. The initial design of a generic architecture is developed using inspiration from the MAPE-K and IMD architectures. Case studies are presented that show three different fault scenarios that can occur within the effectors, sensors and power units of a mobile robot. The results from each of the Case Studies is used to create and refine a generic autonomic architecture that can be utilized for any general mobile robot setup for fault handling. A further Case Study is presented, which exercises the generic autonomic architecture in order to demonstrate its utility. This Thesis addresses the fundamental challenges in operating remote mobile robots with little or no Human intervention. If a fault does occur within the mobile robot during field operations, then having a self-managing strategy as part of its processes may result in the mobile robot continuing to function at a productive level. Research in this Thesis has provided insights into the shortcomings of existing robot design which is also discussed.
Subjects/Keywords: Self-Healing; Robotics; Self-Management; NASA
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Doran, M. (2020). Developing a generic architecture for autonomic fault handling in mobile robots. (Doctoral Dissertation). Ulster University. Retrieved from https://pure.ulster.ac.uk/en/studentTheses/7b7ef4c8-764d-4539-8fef-734208b561c7 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.817572
Chicago Manual of Style (16th Edition):
Doran, Martin. “Developing a generic architecture for autonomic fault handling in mobile robots.” 2020. Doctoral Dissertation, Ulster University. Accessed March 07, 2021.
https://pure.ulster.ac.uk/en/studentTheses/7b7ef4c8-764d-4539-8fef-734208b561c7 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.817572.
MLA Handbook (7th Edition):
Doran, Martin. “Developing a generic architecture for autonomic fault handling in mobile robots.” 2020. Web. 07 Mar 2021.
Vancouver:
Doran M. Developing a generic architecture for autonomic fault handling in mobile robots. [Internet] [Doctoral dissertation]. Ulster University; 2020. [cited 2021 Mar 07].
Available from: https://pure.ulster.ac.uk/en/studentTheses/7b7ef4c8-764d-4539-8fef-734208b561c7 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.817572.
Council of Science Editors:
Doran M. Developing a generic architecture for autonomic fault handling in mobile robots. [Doctoral Dissertation]. Ulster University; 2020. Available from: https://pure.ulster.ac.uk/en/studentTheses/7b7ef4c8-764d-4539-8fef-734208b561c7 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.817572

Louisiana State University
19.
Milla, Jose Eduardo.
Performance Evaluation and Characterization of Encapsulated Calcium Nitrate for Self-Healing Concrete Applications.
Degree: PhD, Engineering Science and Materials, 2017, Louisiana State University
URL: etd-04072017-175050
;
https://digitalcommons.lsu.edu/gradschool_dissertations/4398
► Self-healing concrete through microencapsulated calcium nitrate is a novel approach to enhance durability and decrease the costs associated with maintenance and repairs. However, to fully…
(more)
▼ Self-healing concrete through microencapsulated calcium nitrate is a novel approach to enhance durability and decrease the costs associated with maintenance and repairs. However, to fully assess the potential of this technology, there are many questions to be answered, ranging from identifying the microcapsule properties that are successfully carry the healing agent, to the effect of the microcapsule size, concentration (by weight of cement), and morphology have on the intrinsic concrete material properties and self-healing potential. Hence, the objectives of this study were to: (a) Develop a microencapsulation procedure for calcium nitrate as the healing agent; (b) Measure the short-term healing efficiency of the developed microcapsules in concrete; (c) Measure the long-term healing efficiency of such microcapsules in concrete.
To achieve objective A, the effect of the production parameters was quantified with respect to the microcapsule size and morphology. The results indicated that the agitation rate, emulsifier type, and emulsifier concentration affected the mean microcapsule diameter. The morphology of the microcapsule did not vary significantly between the tested production parameters. Objectives B and C measured the healing performance of concrete with embedded microcapsules. For the short-term healing period, the microcapsules proved to be significantly detrimental to the intrinsic concrete properties as the air content in the cement paste was substantially increased. Hence, factors contributing to the concrete strength deficiencies were addressed and corrected with modifications to the mix design and encapsulation procedures to evaluate the long-term healing period with respect to the mechanical properties and crack-sealing of concrete with embedded microcapsules.
Subjects/Keywords: Self-healing concrete; crack repair; calcium nitrate; healing agent; microcapsules
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Milla, J. E. (2017). Performance Evaluation and Characterization of Encapsulated Calcium Nitrate for Self-Healing Concrete Applications. (Doctoral Dissertation). Louisiana State University. Retrieved from etd-04072017-175050 ; https://digitalcommons.lsu.edu/gradschool_dissertations/4398
Chicago Manual of Style (16th Edition):
Milla, Jose Eduardo. “Performance Evaluation and Characterization of Encapsulated Calcium Nitrate for Self-Healing Concrete Applications.” 2017. Doctoral Dissertation, Louisiana State University. Accessed March 07, 2021.
etd-04072017-175050 ; https://digitalcommons.lsu.edu/gradschool_dissertations/4398.
MLA Handbook (7th Edition):
Milla, Jose Eduardo. “Performance Evaluation and Characterization of Encapsulated Calcium Nitrate for Self-Healing Concrete Applications.” 2017. Web. 07 Mar 2021.
Vancouver:
Milla JE. Performance Evaluation and Characterization of Encapsulated Calcium Nitrate for Self-Healing Concrete Applications. [Internet] [Doctoral dissertation]. Louisiana State University; 2017. [cited 2021 Mar 07].
Available from: etd-04072017-175050 ; https://digitalcommons.lsu.edu/gradschool_dissertations/4398.
Council of Science Editors:
Milla JE. Performance Evaluation and Characterization of Encapsulated Calcium Nitrate for Self-Healing Concrete Applications. [Doctoral Dissertation]. Louisiana State University; 2017. Available from: etd-04072017-175050 ; https://digitalcommons.lsu.edu/gradschool_dissertations/4398

Louisiana State University
20.
Aguirre Deras, Max Abelardo.
Micro-Encapsulation of Asphalt Rejuvenators using Melamine-Formaldehyde.
Degree: MS, Construction Engineering and Management, 2015, Louisiana State University
URL: etd-11052015-170948
;
https://digitalcommons.lsu.edu/gradschool_theses/463
► Self-healing microencapsulation in asphalt concrete is an emerging technology that would allow this particular material to resist cracking damage caused by vehicular and environmental…
(more)
▼ Self-healing microencapsulation in asphalt concrete is an emerging technology that would allow this particular material to resist cracking damage caused by vehicular and environmental loading. The objectives of this study were to evaluate the effect of an asphalt rejuvenator on asphalt binder in reversing the aging process and to develop a synthesis procedure for the production of microencapsulation of asphalt rejuvenators. Production parameters such as agitation rate, heating temperature and EMA concentration were varied to determine the effect on microcapsules properties such as size, shell thickness and morphology. Based on the results of the experimental program, it was concluded that the use of PennzSuppress D as a rejuvenator was effective in partially reversing the aging of asphalt binder by positively influencing both the high temperature and low temperature grades of the binder 70-22. In contrast, the use of PennzSuppress D as a rejuvenator did only influence the low temperature grade of the binder 76-22 and the high temperature grade of the RAP. A synthesis procedure was developed for the preparation of microencapsulation of PennzSuppress D and to characterize microcapsule properties such as diameter, shell thickness and morphology of the prepared microcapsules.
Subjects/Keywords: self-healing asphalt; microcapsules; crack repair; healing agent
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Aguirre Deras, M. A. (2015). Micro-Encapsulation of Asphalt Rejuvenators using Melamine-Formaldehyde. (Masters Thesis). Louisiana State University. Retrieved from etd-11052015-170948 ; https://digitalcommons.lsu.edu/gradschool_theses/463
Chicago Manual of Style (16th Edition):
Aguirre Deras, Max Abelardo. “Micro-Encapsulation of Asphalt Rejuvenators using Melamine-Formaldehyde.” 2015. Masters Thesis, Louisiana State University. Accessed March 07, 2021.
etd-11052015-170948 ; https://digitalcommons.lsu.edu/gradschool_theses/463.
MLA Handbook (7th Edition):
Aguirre Deras, Max Abelardo. “Micro-Encapsulation of Asphalt Rejuvenators using Melamine-Formaldehyde.” 2015. Web. 07 Mar 2021.
Vancouver:
Aguirre Deras MA. Micro-Encapsulation of Asphalt Rejuvenators using Melamine-Formaldehyde. [Internet] [Masters thesis]. Louisiana State University; 2015. [cited 2021 Mar 07].
Available from: etd-11052015-170948 ; https://digitalcommons.lsu.edu/gradschool_theses/463.
Council of Science Editors:
Aguirre Deras MA. Micro-Encapsulation of Asphalt Rejuvenators using Melamine-Formaldehyde. [Masters Thesis]. Louisiana State University; 2015. Available from: etd-11052015-170948 ; https://digitalcommons.lsu.edu/gradschool_theses/463

Louisiana State University
21.
Tavangarian, Fariborz.
Crack Self-Healing in SiC/Spinel Nanocomposite.
Degree: PhD, Mechanical Engineering, 2014, Louisiana State University
URL: etd-11042014-175430
;
https://digitalcommons.lsu.edu/gradschool_dissertations/1980
► Spinel is one of the best known and widely used ceramic materials. It has good thermal shock resistance, high chemical inertness in both acidic and…
(more)
▼ Spinel is one of the best known and widely used ceramic materials. It has good thermal shock resistance, high chemical inertness in both acidic and basic environments, excellent optical and dielectric properties, high strength at both elevated and normal temperatures, and has no phase transition up to the melting temperature (2135°C). Spinel is used in the metallurgical, electrochemical, and chemical industrial fields. It has also found some applications in dentistry, catalyst supports, humidity sensors, reinforcing fibers, photoluminescent materials, etc. One of the limitations of spinel ceramic is its brittleness. Furthermore, at high temperature applications, a rapid heating or cooling can cause a high thermal gradient. Building up of such thermal stresses can lead to surface microcracking and crack growth, which finally can lead to a catastrophic failure of the component. In order to overcome this problem, it is highly desirable that the self-healing capability of spinel and spinel composites are investigated. In this research for the first time we studied the crack self-healing capability of nanostructure spinel. The results showed that grain growth and sintering phenomena are the two factors controlling the healing procedures. In the case of spinel ceramic, cracks can be completely healed after annealing the specimens at 1600°C for 100h with the strength recovery of 91%. On the other hand, it has been found that SiC can be used as a healing agent in many ceramics even in those ceramics without any crack healing ability. Therefore, first SiC/spinel nanocomposite was synthesized using talc, aluminum and graphite powders. The sintering behavior of the SiC/spinel nanocomposite was investigated and the best pellets from physical and mechanical properties point of views were selected to study the self-healing behavior of SiC/spinel nanocomposite. The results showed that SiC/spinel nanocomposite has an exceptional crack-healing ability as the surface cracks can be healed after sintering the specimens at 1550°C for 1 min in air with the strength recovery of 99%. Reaction of SiC with air and formation of SiO2 and subsequently formation of mullite and dissociation of enstatite are the possible mechanisms responsible for crack healing in SiC/spinel nanocomposite.
Subjects/Keywords: Ceramics; SiC; Spinel; Self-healing; Crack-healing; Nanocomposite; Nanostructure
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Tavangarian, F. (2014). Crack Self-Healing in SiC/Spinel Nanocomposite. (Doctoral Dissertation). Louisiana State University. Retrieved from etd-11042014-175430 ; https://digitalcommons.lsu.edu/gradschool_dissertations/1980
Chicago Manual of Style (16th Edition):
Tavangarian, Fariborz. “Crack Self-Healing in SiC/Spinel Nanocomposite.” 2014. Doctoral Dissertation, Louisiana State University. Accessed March 07, 2021.
etd-11042014-175430 ; https://digitalcommons.lsu.edu/gradschool_dissertations/1980.
MLA Handbook (7th Edition):
Tavangarian, Fariborz. “Crack Self-Healing in SiC/Spinel Nanocomposite.” 2014. Web. 07 Mar 2021.
Vancouver:
Tavangarian F. Crack Self-Healing in SiC/Spinel Nanocomposite. [Internet] [Doctoral dissertation]. Louisiana State University; 2014. [cited 2021 Mar 07].
Available from: etd-11042014-175430 ; https://digitalcommons.lsu.edu/gradschool_dissertations/1980.
Council of Science Editors:
Tavangarian F. Crack Self-Healing in SiC/Spinel Nanocomposite. [Doctoral Dissertation]. Louisiana State University; 2014. Available from: etd-11042014-175430 ; https://digitalcommons.lsu.edu/gradschool_dissertations/1980

University of Waterloo
22.
Aurilio, Mike.
Evaluating the Effect of a Self-Healing Elastomer on the Self-Healing Properties of Asphalt Cement.
Degree: 2020, University of Waterloo
URL: http://hdl.handle.net/10012/16364
► Asphalt pavements exhibit an interesting behaviour when the traffic loading is removed. The chemical structure of asphalt cement lends itself to the ability to heal…
(more)
▼ Asphalt pavements exhibit an interesting behaviour when the traffic loading is removed. The chemical structure of asphalt cement lends itself to the ability to heal damage and improve the longevity of the pavement. This phenomenon was first discovered in the 1960s and makes up an interesting area of research. The area of self-healing materials has been a growing area of research for materials in general, but recently attempts have been made to improve the natural healing capabilities of asphalt cement. Other branches of science have begun using microcapsules dispersed through the matrix to distribute healing agent upon damage. Styrene Butadiene Styrene (SBS) modification of asphalt cement is already a common technology in the pavement industry, and this has inspired the idea to introduce a polymer that has self-healing properties into asphalt cement. This thesis looks at the effect of traditional elastomeric modification on the healing efficiency of asphalt cement and explore the use of a novel self-healing elastomer (SHE) to modify the asphalt cement healing properties. Data in this thesis indicates that the self-healing elastomer used here was unable to improve the healing efficiency of asphalt cement, while SBS has shown some ability to improve crack healing. SBS has also shown a great ability to improve adhesion, which may influence the cohesive healing ability of asphalt cement.
Subjects/Keywords: self-healing; polymer modified asphalt; fatigue cracking; crack healing
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Aurilio, M. (2020). Evaluating the Effect of a Self-Healing Elastomer on the Self-Healing Properties of Asphalt Cement. (Thesis). University of Waterloo. Retrieved from http://hdl.handle.net/10012/16364
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Aurilio, Mike. “Evaluating the Effect of a Self-Healing Elastomer on the Self-Healing Properties of Asphalt Cement.” 2020. Thesis, University of Waterloo. Accessed March 07, 2021.
http://hdl.handle.net/10012/16364.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Aurilio, Mike. “Evaluating the Effect of a Self-Healing Elastomer on the Self-Healing Properties of Asphalt Cement.” 2020. Web. 07 Mar 2021.
Vancouver:
Aurilio M. Evaluating the Effect of a Self-Healing Elastomer on the Self-Healing Properties of Asphalt Cement. [Internet] [Thesis]. University of Waterloo; 2020. [cited 2021 Mar 07].
Available from: http://hdl.handle.net/10012/16364.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Aurilio M. Evaluating the Effect of a Self-Healing Elastomer on the Self-Healing Properties of Asphalt Cement. [Thesis]. University of Waterloo; 2020. Available from: http://hdl.handle.net/10012/16364
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Penn State University
23.
Hsiao Liao, Erik.
CATIONIC POLYMER LUBRICANT (CPL): A NEW BOUND AND MOBILE
BOUNDARY LUBRICANT WITH SELF-HEALING CAPABILITIES
.
Degree: 2011, Penn State University
URL: https://submit-etda.libraries.psu.edu/catalog/12061
► The boundary film formation and lubrication effects of low-molecular-weight silicone molecules with cationic side groups were studied. Poly-(N,N,N-trimethylamine-3-propylmethylsiloxane-co-dimethylsiloxane) iodide was synthesized and deposited on silicon…
(more)
▼ The boundary film formation and lubrication effects of low-molecular-weight silicone molecules with cationic side groups were studied. Poly-(N,N,N-trimethylamine-3-propylmethylsiloxane-co-dimethylsiloxane) iodide was synthesized and deposited on silicon oxide surfaces to form a bound-and-mobile lubricant film. The effects of the ionically bound layer and mobile multilayers were investigated. Both nano- and macro-scale tribological tests revealed superior lubrication performance of the silicon molecule with cationic side chains over the neutral silicon molecule (which was modeled with polydimethylsiloxane with the same molecule weight). The multilayer films exhibited characteristic topographic features due to ionic interactions within the polymeric film.
In the macro-scale, the effects of ionic content, environmental condition, and advantage of the bound layer on
self-
healing will be discussed to demonstrate the wear resistance and
self-
healing capability. The multilayer spreading rates were estimated to be ~10^-11 m2/s. In the nano-scale, the results of disjoining pressure and viscosity measurements help understand the lateral spreading of the mobile layer and identify the mobile species. The mobile species are the reduced tertiary amine form of CPL.
The hydrophobic but hygroscopic properties of CPL are also investigated with SFG and ATR-IR. The CPL-coated surfaces are hydrophobic which prevents the detrimental effects of humidity on wear of silicon. In addition, the hygroscopic nature of CPL allows humidity to be absorbed into the film, which enhances the
self-
healing capabilities.
Finally, by texturing the silicon surface with nanowells,
self-
healing is enhanced when the nanowells are filled with CPL. The nanowells serve as CPL reservoirs that are readily available for
self-
healing within the wear track for faster cycle intervals. However, the nanowells deteriorate the
self-
healing from surrounding the contact region due to the refilling of the empty nanowells.
Advisors/Committee Members: Seong Han Kim, Dissertation Advisor/Co-Advisor, Seong Han Kim, Committee Chair/Co-Chair, Themis Matsoukas, Committee Member, Joseph Manuel Perez Sr., Committee Member, Evangelos Manias, Committee Member.
Subjects/Keywords: Self-healing; Lubricant; Polymer; Tribology; AFM
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Hsiao Liao, E. (2011). CATIONIC POLYMER LUBRICANT (CPL): A NEW BOUND AND MOBILE
BOUNDARY LUBRICANT WITH SELF-HEALING CAPABILITIES
. (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/12061
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Hsiao Liao, Erik. “CATIONIC POLYMER LUBRICANT (CPL): A NEW BOUND AND MOBILE
BOUNDARY LUBRICANT WITH SELF-HEALING CAPABILITIES
.” 2011. Thesis, Penn State University. Accessed March 07, 2021.
https://submit-etda.libraries.psu.edu/catalog/12061.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Hsiao Liao, Erik. “CATIONIC POLYMER LUBRICANT (CPL): A NEW BOUND AND MOBILE
BOUNDARY LUBRICANT WITH SELF-HEALING CAPABILITIES
.” 2011. Web. 07 Mar 2021.
Vancouver:
Hsiao Liao E. CATIONIC POLYMER LUBRICANT (CPL): A NEW BOUND AND MOBILE
BOUNDARY LUBRICANT WITH SELF-HEALING CAPABILITIES
. [Internet] [Thesis]. Penn State University; 2011. [cited 2021 Mar 07].
Available from: https://submit-etda.libraries.psu.edu/catalog/12061.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Hsiao Liao E. CATIONIC POLYMER LUBRICANT (CPL): A NEW BOUND AND MOBILE
BOUNDARY LUBRICANT WITH SELF-HEALING CAPABILITIES
. [Thesis]. Penn State University; 2011. Available from: https://submit-etda.libraries.psu.edu/catalog/12061
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Manchester
24.
Bingham, Ruth.
Corrosion Protection and Self-healing in Nanocomposite
Coatings.
Degree: 2011, University of Manchester
URL: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:124590
► Ruth Violet Bingham, PhD Thesis, The University of Manchester. Corrosion Protection and Self-healing in Nanocomposite Coatings. 2011Abstract:Recent interest in environmentally friendly alternatives to chromate-based corrosion…
(more)
▼ Ruth Violet Bingham, PhD Thesis, The University of
Manchester. Corrosion Protection and
Self-
healing in Nanocomposite
Coatings. 2011Abstract:Recent interest in environmentally friendly
alternatives to chromate-based corrosion inhibitors has led to the
development of a range of novel coating formulations. The work
described in this thesis has been aimed at investigating the
mechanism of
self-
healing and active corrosion protection of the
new coatings by searching for active components that have migrated
from the coating to a controlled defect. The use of glow discharge
optical emission spectroscopy (GDOES) has been investigated as a
tool for both the generation of a reproducible controlled defect
and for elemental depth profiling of the coatings and corroded
substrates. Conclusions drawn from the elemental depth profiles
have been validated by a range of characterisation techniques
including optical microscopy, scanning electron microscopy,
energy-dispersive X-ray spectroscopy (EDX) and electrochemical
techniques.The work has focused particularly on a comparison of
hybrid coatings doped with inhibitors encapsulated in
nano-containers, as compared with the direct addition of inhibitor
species to the coating matrix. The work also investigates the
effects of inhibitor addition to sol-gel coatings or primer systems
or both, highlighting possible synergistic effects of mixed
inhibitor systems (for example, sol-gel coating doped with
strontium aluminium polyphosphate (SAPP) supporting primers doped
with benzotriazol (BZT) or mercaptobenzothiazol (MBT).The various
coatings have also been studied in the absence of inhibitor species
to assess the effectiveness of the coatings as barriers between the
substrate and the corrosive environment. This aspect of the study
has highlighted minor inhibitive effects of some of the reagents
used in the coating formulations and a major inhibitive effect of
the nano-containers. The work therefore concludes with
recommendations for a possible coating formulation combining the
most beneficial elements of the various coatings
investigated.
Advisors/Committee Members: Thompson, George.
Subjects/Keywords: Corrosion; Self-healing; Nanomaterials; Coatings; GDOES
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Bingham, R. (2011). Corrosion Protection and Self-healing in Nanocomposite
Coatings. (Doctoral Dissertation). University of Manchester. Retrieved from http://www.manchester.ac.uk/escholar/uk-ac-man-scw:124590
Chicago Manual of Style (16th Edition):
Bingham, Ruth. “Corrosion Protection and Self-healing in Nanocomposite
Coatings.” 2011. Doctoral Dissertation, University of Manchester. Accessed March 07, 2021.
http://www.manchester.ac.uk/escholar/uk-ac-man-scw:124590.
MLA Handbook (7th Edition):
Bingham, Ruth. “Corrosion Protection and Self-healing in Nanocomposite
Coatings.” 2011. Web. 07 Mar 2021.
Vancouver:
Bingham R. Corrosion Protection and Self-healing in Nanocomposite
Coatings. [Internet] [Doctoral dissertation]. University of Manchester; 2011. [cited 2021 Mar 07].
Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:124590.
Council of Science Editors:
Bingham R. Corrosion Protection and Self-healing in Nanocomposite
Coatings. [Doctoral Dissertation]. University of Manchester; 2011. Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:124590

Deakin University
25.
Chaffraix, Thomas Louis Jacques Henri.
Self-healing dendrimers based on ionic or hydrogen-bonding supramolecular interactions.
Degree: 2014, Deakin University
URL: http://hdl.handle.net/10536/DRO/DU:30074317
This PhD project dealt with the development and characterisation of a number of metallo and hydrogen-bonded supramolecular dendrimers for applications in the area of self-healing materials
Advisors/Committee Members: Magniez, Kevin, Fox, Bronwyn.
Subjects/Keywords: self-healing materials; supramolecular dendrimers; polymers
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Chaffraix, T. L. J. H. (2014). Self-healing dendrimers based on ionic or hydrogen-bonding supramolecular interactions. (Thesis). Deakin University. Retrieved from http://hdl.handle.net/10536/DRO/DU:30074317
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Chaffraix, Thomas Louis Jacques Henri. “Self-healing dendrimers based on ionic or hydrogen-bonding supramolecular interactions.” 2014. Thesis, Deakin University. Accessed March 07, 2021.
http://hdl.handle.net/10536/DRO/DU:30074317.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Chaffraix, Thomas Louis Jacques Henri. “Self-healing dendrimers based on ionic or hydrogen-bonding supramolecular interactions.” 2014. Web. 07 Mar 2021.
Vancouver:
Chaffraix TLJH. Self-healing dendrimers based on ionic or hydrogen-bonding supramolecular interactions. [Internet] [Thesis]. Deakin University; 2014. [cited 2021 Mar 07].
Available from: http://hdl.handle.net/10536/DRO/DU:30074317.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Chaffraix TLJH. Self-healing dendrimers based on ionic or hydrogen-bonding supramolecular interactions. [Thesis]. Deakin University; 2014. Available from: http://hdl.handle.net/10536/DRO/DU:30074317
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
26.
Giannaros, Petros.
Laboratory and field investigation of the performance of novel microcapsule-based self-healing concrete.
Degree: PhD, 2017, University of Cambridge
URL: https://www.repository.cam.ac.uk/handle/1810/269924
► Concrete, a composite material consisting of aggregates bound together with cement paste, is the most widely used construction material. Concrete is relatively cheap, very versatile…
(more)
▼ Concrete, a composite material consisting of aggregates bound together with cement paste, is the most widely used construction material. Concrete is relatively cheap, very versatile and has excellent compressive strength. However, its tensile strength is limited and for this reason steel rebars are often added to create reinforced concrete (RC). Cracking inevitably occurs in all RC materials and associated structures due to a variety of mechanical and environmental actions. The generation of tiny microcracks within concrete facilitates the flow of potentially aggressive fluids that can corrode the embedded steel rebars and, in extreme cases, lead to premature structural failure.
Concrete, along with all cement-based materials, does possess some inherent self-healing capacity and is able to heal certain-size cracks autogenously. This self-healing capability is very limited and therefore researchers have attempted to improve upon it by using a variety of techniques. In particular, the use of engineered additions for autonomic self-healing has gained significant interest in the past two decades. An example is the addition of microcapsules that disperse throughout the hardened material subsequently providing reservoirs of healing agents. When cracks arise within the material, they rupture the embedded microcapsules causing a release of their contents into the crack volume. The released material then reacts to provide filling, sealing and healing of the crack.
The primary aim of this research project was to investigate the autonomic self-healing performance of concrete containing microencapsulated sodium silicate. The effect of microcapsule addition on the fresh, hardened and self-healing properties of cement, mortar and concrete were all explored. Self-healing was monitored using a variety of techniques and results reveal the increased self-healing ability of microcapsule-containing cementitious materials as well as the efficacy of sodium silicate as a healing agent. Furthermore, the self-healing concrete field trial displays the great potential for microcapsules to be incorporated into large-scale self-healing concrete applications.
Subjects/Keywords: self-healing; concrete; microcapsules; autonomic; cementitious materials
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Giannaros, P. (2017). Laboratory and field investigation of the performance of novel microcapsule-based self-healing concrete. (Doctoral Dissertation). University of Cambridge. Retrieved from https://www.repository.cam.ac.uk/handle/1810/269924
Chicago Manual of Style (16th Edition):
Giannaros, Petros. “Laboratory and field investigation of the performance of novel microcapsule-based self-healing concrete.” 2017. Doctoral Dissertation, University of Cambridge. Accessed March 07, 2021.
https://www.repository.cam.ac.uk/handle/1810/269924.
MLA Handbook (7th Edition):
Giannaros, Petros. “Laboratory and field investigation of the performance of novel microcapsule-based self-healing concrete.” 2017. Web. 07 Mar 2021.
Vancouver:
Giannaros P. Laboratory and field investigation of the performance of novel microcapsule-based self-healing concrete. [Internet] [Doctoral dissertation]. University of Cambridge; 2017. [cited 2021 Mar 07].
Available from: https://www.repository.cam.ac.uk/handle/1810/269924.
Council of Science Editors:
Giannaros P. Laboratory and field investigation of the performance of novel microcapsule-based self-healing concrete. [Doctoral Dissertation]. University of Cambridge; 2017. Available from: https://www.repository.cam.ac.uk/handle/1810/269924

University of Illinois – Chicago
27.
Ariyan, Mansoore.
Mechanokinetic coupled Modeling of Self-Healing Behavior in Materials.
Degree: 2014, University of Illinois – Chicago
URL: http://hdl.handle.net/10027/11210
► Many inspiration in biological science world strike exciting opportunities in material science and led to a range of biomimetic and other advanced functional materials for…
(more)
▼ Many inspiration in biological science world strike exciting opportunities in material science and led to a range of biomimetic and other advanced functional materials for engineering and medical applications. The
self-controlled smart behavior of these systems make their individual functional components sense and process the environment and take necessary actions, similar to a living creature. This smart action is referred to a progressive change of material internal structure and chemical composition at a macroscopic interval of time. The dynamic internal structure results in varying constitutive properties and viewed as an adequate response of the material to external loading. The slow-rate evolution of constitutive properties of the materials is often affected by non-elastomechanical nature, such as phase transitions, chemical reactions, diffusion and other kinetic processes at the atomic scale. Additionally, the interplay between the mechanical performance and the internal structure dynamics can be two-way. This indicates that mechanical stress or strain in such material may trigger or affect kinetic processes responsible for its internal structure evolution; in turn, the changed internal structure may influence bulk properties and therefore mechanical response of the material to the external loading.
In this study, a nondeterministic multiple scale approach based on numerical solution of the Monte-Carlo master equation on atomic lattices solved together with a standard
vi
Finite-Element formulation of solid mechanics is investigated. This approach is applicable to long-term evolutionary processes such as precipitation, volume diffusion and creep cavity
self-
healing in nano-crystalline austenite (Fe fcc) samples. A two-way mechanokinetic coupling is achieved through implementation of strain- dependent diffusion rates and dynamic update of the finite element model based on atomic structure evolution. This study also discusses the effect of macroscopic static loading and cavity geometry on the total
healing time. The approach is used in application of modeling and characterization of advanced functional materials with evolutionary internal structures, and emerging behavior in material systems. In the current research we are studying a nondeterministic multiple scale approach based on numerical solution of the Monte-Carlo master equation on atomic lattices which is solved together with a standard Finite-Element formulation of solid mechanics. This approach is applicable to long-term evolutionary processes such as precipitation, volume diffusion and creep cavity
self-
healing in nanocrystalline austenite (Fe fcc) samples. A two-way mechanokinetic coupling is achieved through implementation of strain-dependent diffusion rates and dynamic update of the finite element model based on atomi structure evolution. This study also discusses the effect of macroscopic static loading and cavity geometry on the total
healing time. The approach is used in application of modeling and characterization of advanced functional…
Advisors/Committee Members: Karpov, Eduard (advisor), McNallan, Michael (committee member), Foster, Craig (committee member).
Subjects/Keywords: Self-healing materials; Monte Carlo; Finite Elements
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Ariyan, M. (2014). Mechanokinetic coupled Modeling of Self-Healing Behavior in Materials. (Thesis). University of Illinois – Chicago. Retrieved from http://hdl.handle.net/10027/11210
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Ariyan, Mansoore. “Mechanokinetic coupled Modeling of Self-Healing Behavior in Materials.” 2014. Thesis, University of Illinois – Chicago. Accessed March 07, 2021.
http://hdl.handle.net/10027/11210.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Ariyan, Mansoore. “Mechanokinetic coupled Modeling of Self-Healing Behavior in Materials.” 2014. Web. 07 Mar 2021.
Vancouver:
Ariyan M. Mechanokinetic coupled Modeling of Self-Healing Behavior in Materials. [Internet] [Thesis]. University of Illinois – Chicago; 2014. [cited 2021 Mar 07].
Available from: http://hdl.handle.net/10027/11210.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Ariyan M. Mechanokinetic coupled Modeling of Self-Healing Behavior in Materials. [Thesis]. University of Illinois – Chicago; 2014. Available from: http://hdl.handle.net/10027/11210
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Université Catholique de Louvain
28.
Brassinne, Jérémy.
Supramolecular interactions for controlling the structure, self-organization and dynamics of stimuli-responsive polymeric systems.
Degree: 2015, Université Catholique de Louvain
URL: http://hdl.handle.net/2078.1/165985
► In the last years, the advent of supramolecular chemistry has provided chemists with new possibilities to synthesize complex structures and dynamic materials by self-assembly. By…
(more)
▼ In the last years, the advent of supramolecular chemistry has provided chemists with new possibilities to synthesize complex structures and dynamic materials by self-assembly. By virtue of their properties, metal–ligand interactions are particularly promising for the synthesis of supramolecular polymers and the construction of “smart” materials with self-restructuring abilities. Among them, supramolecular gels constitute a very interesting sub-class because of numerous applications in various fields. In this frame, the goal of this thesis is to gain an unprecedented control over the structure, self-organization and molecular dynamics of polymeric gels by exploiting a novel combination of classical macromolecular architectures and supramolecular interactions of the metal–ligand type. The first goal of this thesis relies on the synthesis of well-defined copolymers, functionalized with a ligand of interest. These building blocks will then be used in the design of supramolecular materials with responsive properties. Precisely, the coordination of metal to ligands will be used to link micellar objects, obtained by the self-assembly of covalent block copolymers. The rheological behaviour of the accordingly obtained materials will be thoroughly characterized in order to establish relationships between their structure, dynamics and mechanical properties. The present thesis aims at studying in details the response of these systems to external stimuli. These stimuli-responsive properties will be inherent to the supramolecular materials and further obtained by using stimuli-responsive polymer sequences as building blocks.
(SC - Sciences) – UCL, 2015
Advisors/Committee Members: UCL - SST/IMCN/BSMA - Bio and soft matter, UCL - Faculté des Sciences, Gohy, Jean-François, Fustin, Charles-André, Bailly, Christian, Bouteiller, Laurent, van Ruymbeke, Evelyne, Vlassoupoulos, Dimitris, Devaux, Jacques.
Subjects/Keywords: Polymer; Supramolecular; Rheology; Material; Self-healing
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Brassinne, J. (2015). Supramolecular interactions for controlling the structure, self-organization and dynamics of stimuli-responsive polymeric systems. (Thesis). Université Catholique de Louvain. Retrieved from http://hdl.handle.net/2078.1/165985
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Brassinne, Jérémy. “Supramolecular interactions for controlling the structure, self-organization and dynamics of stimuli-responsive polymeric systems.” 2015. Thesis, Université Catholique de Louvain. Accessed March 07, 2021.
http://hdl.handle.net/2078.1/165985.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Brassinne, Jérémy. “Supramolecular interactions for controlling the structure, self-organization and dynamics of stimuli-responsive polymeric systems.” 2015. Web. 07 Mar 2021.
Vancouver:
Brassinne J. Supramolecular interactions for controlling the structure, self-organization and dynamics of stimuli-responsive polymeric systems. [Internet] [Thesis]. Université Catholique de Louvain; 2015. [cited 2021 Mar 07].
Available from: http://hdl.handle.net/2078.1/165985.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Brassinne J. Supramolecular interactions for controlling the structure, self-organization and dynamics of stimuli-responsive polymeric systems. [Thesis]. Université Catholique de Louvain; 2015. Available from: http://hdl.handle.net/2078.1/165985
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Manchester
29.
Bingham, Ruth.
Corrosion protection and self-healing in nanocomposite coatings.
Degree: PhD, 2011, University of Manchester
URL: https://www.research.manchester.ac.uk/portal/en/theses/corrosion-protection-and-selfhealing-in-nanocomposite-coatings(d1419ee3-a028-401a-80c2-2151f7f1f633).html
;
http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.538401
► Recent interest in environmentally friendly alternatives to chromate-based corrosion inhibitors has led to the development of a range of novel coating formulations. The work described…
(more)
▼ Recent interest in environmentally friendly alternatives to chromate-based corrosion inhibitors has led to the development of a range of novel coating formulations. The work described in this thesis has been aimed at investigating the mechanism of self-healing and active corrosion protection of the new coatings by searching for active components that have migrated from the coating to a controlled defect. The use of glow discharge optical emission spectroscopy (GDOES) has been investigated as a tool for both the generation of a reproducible controlled defect and for elemental depth profiling of the coatings and corroded substrates. Conclusions drawn from the elemental depth profiles have been validated by a range of characterisation techniques including optical microscopy, scanning electron microscopy, energy-dispersive X-ray spectroscopy (EDX) and electrochemical techniques. The work has focused particularly on a comparison of hybrid coatings doped with inhibitors encapsulated in nano-containers, as compared with the direct addition of inhibitor species to the coating matrix. The work also investigates the effects of inhibitor addition to sol-gel coatings or primer systems or both, highlighting possible synergistic effects of mixed inhibitor systems (for example, sol-gel coating doped with strontium aluminium polyphosphate (SAPP)) supporting primers doped with benzotriazol (BZT) or mercaptobenzothiazol (MBT). The various coatings have also been studied in the absence of inhibitor species to assess the effectiveness of the coatings as barriers between the substrate and the corrosive environment. This aspect of the study has highlighted minor inhibitive effects of some of the reagents used in the coating formulations and a major inhibitive effect of the nano-containers. The work therefore concludes with recommendations for a possible coating formulation combining the most beneficial elements of the various coatings investigated.
Subjects/Keywords: 669; Corrosion; Self-healing; Nanomaterials; Coatings; GDOES
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Bingham, R. (2011). Corrosion protection and self-healing in nanocomposite coatings. (Doctoral Dissertation). University of Manchester. Retrieved from https://www.research.manchester.ac.uk/portal/en/theses/corrosion-protection-and-selfhealing-in-nanocomposite-coatings(d1419ee3-a028-401a-80c2-2151f7f1f633).html ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.538401
Chicago Manual of Style (16th Edition):
Bingham, Ruth. “Corrosion protection and self-healing in nanocomposite coatings.” 2011. Doctoral Dissertation, University of Manchester. Accessed March 07, 2021.
https://www.research.manchester.ac.uk/portal/en/theses/corrosion-protection-and-selfhealing-in-nanocomposite-coatings(d1419ee3-a028-401a-80c2-2151f7f1f633).html ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.538401.
MLA Handbook (7th Edition):
Bingham, Ruth. “Corrosion protection and self-healing in nanocomposite coatings.” 2011. Web. 07 Mar 2021.
Vancouver:
Bingham R. Corrosion protection and self-healing in nanocomposite coatings. [Internet] [Doctoral dissertation]. University of Manchester; 2011. [cited 2021 Mar 07].
Available from: https://www.research.manchester.ac.uk/portal/en/theses/corrosion-protection-and-selfhealing-in-nanocomposite-coatings(d1419ee3-a028-401a-80c2-2151f7f1f633).html ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.538401.
Council of Science Editors:
Bingham R. Corrosion protection and self-healing in nanocomposite coatings. [Doctoral Dissertation]. University of Manchester; 2011. Available from: https://www.research.manchester.ac.uk/portal/en/theses/corrosion-protection-and-selfhealing-in-nanocomposite-coatings(d1419ee3-a028-401a-80c2-2151f7f1f633).html ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.538401

Delft University of Technology
30.
Martin Rojo, Paula (author).
Surface Precipitation in Gold and Tungsten Containing Iron-based Alloys and Steels.
Degree: 2020, Delft University of Technology
URL: http://resolver.tudelft.nl/uuid:a5c0c250-7af1-4774-94ff-8f8f39800641
► Self-healing materials have recently drawn the attention of industry as a new solution to the degradation of materials. Recent progress on the field of autonomous…
(more)
▼ Self-healing materials have recently drawn the attention of industry as a new solution to the degradation of materials. Recent progress on the field of autonomous self-healing metals has been in the line of self-healing creep-resistant steels. This is challenging due to the nanometer scale of the creep cavities and the fact that only 3D partially filled cavities can be examined to understand the phenomenon. As a consequence, valuable information is hard and expensive to acquire. This thesis proposes to study the surface precipitation phenomenon as an easier alternative to understand creep-cavity precipitation. Surface precipitation have only been studied in binary steels, therefore, the thesis focuses on the influence of the addition of a second self-healing element by studying the time evolution of gold tungsten containing iron based steels. The results provide new insights into the theory of self-healing steels, where tungsten has been found to decelerate the gold precipitation kinetics.
Aerospace Engineering
Advisors/Committee Members: van der Zwaag, Sybrand (graduation committee), van Dijk, Niels (mentor), Delft University of Technology (degree granting institution).
Subjects/Keywords: Self-healing; surface precipitation; Iron alloys; Steels
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Martin Rojo, P. (. (2020). Surface Precipitation in Gold and Tungsten Containing Iron-based Alloys and Steels. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:a5c0c250-7af1-4774-94ff-8f8f39800641
Chicago Manual of Style (16th Edition):
Martin Rojo, Paula (author). “Surface Precipitation in Gold and Tungsten Containing Iron-based Alloys and Steels.” 2020. Masters Thesis, Delft University of Technology. Accessed March 07, 2021.
http://resolver.tudelft.nl/uuid:a5c0c250-7af1-4774-94ff-8f8f39800641.
MLA Handbook (7th Edition):
Martin Rojo, Paula (author). “Surface Precipitation in Gold and Tungsten Containing Iron-based Alloys and Steels.” 2020. Web. 07 Mar 2021.
Vancouver:
Martin Rojo P(. Surface Precipitation in Gold and Tungsten Containing Iron-based Alloys and Steels. [Internet] [Masters thesis]. Delft University of Technology; 2020. [cited 2021 Mar 07].
Available from: http://resolver.tudelft.nl/uuid:a5c0c250-7af1-4774-94ff-8f8f39800641.
Council of Science Editors:
Martin Rojo P(. Surface Precipitation in Gold and Tungsten Containing Iron-based Alloys and Steels. [Masters Thesis]. Delft University of Technology; 2020. Available from: http://resolver.tudelft.nl/uuid:a5c0c250-7af1-4774-94ff-8f8f39800641
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