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You searched for subject:(graphene nano platelets). Showing records 1 – 3 of 3 total matches.

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Purdue University

1. Peng, Cheng. INVESTIGATION OF THE MECHANICAL PROPERTIES OF NANOSTRUCTURED MATERIAL DEPOSITED BY LASER-INDUCED CHEMICAL SOLUTION DEPOSITION AND POLYMER NANO-COMPOSITES.

Degree: MSIE, Industrial Engineering, 2016, Purdue University

In this study, the mechanical properties of the deposited coating consisted of copper nanoparticles and then the polymer carbon-based nano-composites are explored respectively through various mechanical tests. In the first part, laser-induced chemical solution deposition is introduced as a recently developed nano-manufacturing technique to deposit thin film of copper nanoparticles on the copper substrate. In order to assess the performance and properties of such porous nanostructured materials deposited by this method, the micro-structure of deposited material is characterized by SEM and its mechanical properties are investigated by a variety of experiments such as micro-hardness test, nano-indentation test, bending test and adhesion test. The mechanical properties of metals with surface deposition have been shown to be inherently strong to allow effective usage in industrial and other applications. In the second part, different types of nano-composites are studied: polymer matrix incorporated with two comparable nanoscale additives. The popular carbon nano-tube and graphene nano-platelets are introduced into epoxy matrix. Uniaxial tensile test and dynamic fatigue tensile test as well are conducted to evaluate the tension properties and performance of different polymer nano-composites. Both nanofillers show a decent improvement in ultimate tensile strength and Young’s modulus, especially for graphene nano-platelets which are particularly helpful in adding longevity of the fatigued composites. Advisors/Committee Members: C.Richard Liu, Joseph Pekny, Ramses Martinez, Wenzhuo Wu.

Subjects/Keywords: copper nanoparticle coating; graphene nano-platelets; laser-induced chemical solution deposition; mechanical properties; polymer nano-composites

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Peng, C. (2016). INVESTIGATION OF THE MECHANICAL PROPERTIES OF NANOSTRUCTURED MATERIAL DEPOSITED BY LASER-INDUCED CHEMICAL SOLUTION DEPOSITION AND POLYMER NANO-COMPOSITES. (Thesis). Purdue University. Retrieved from https://docs.lib.purdue.edu/open_access_theses/1119

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):

Peng, Cheng. “INVESTIGATION OF THE MECHANICAL PROPERTIES OF NANOSTRUCTURED MATERIAL DEPOSITED BY LASER-INDUCED CHEMICAL SOLUTION DEPOSITION AND POLYMER NANO-COMPOSITES.” 2016. Thesis, Purdue University. Accessed October 17, 2019. https://docs.lib.purdue.edu/open_access_theses/1119.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7th Edition):

Peng, Cheng. “INVESTIGATION OF THE MECHANICAL PROPERTIES OF NANOSTRUCTURED MATERIAL DEPOSITED BY LASER-INDUCED CHEMICAL SOLUTION DEPOSITION AND POLYMER NANO-COMPOSITES.” 2016. Web. 17 Oct 2019.

Vancouver:

Peng C. INVESTIGATION OF THE MECHANICAL PROPERTIES OF NANOSTRUCTURED MATERIAL DEPOSITED BY LASER-INDUCED CHEMICAL SOLUTION DEPOSITION AND POLYMER NANO-COMPOSITES. [Internet] [Thesis]. Purdue University; 2016. [cited 2019 Oct 17]. Available from: https://docs.lib.purdue.edu/open_access_theses/1119.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Peng C. INVESTIGATION OF THE MECHANICAL PROPERTIES OF NANOSTRUCTURED MATERIAL DEPOSITED BY LASER-INDUCED CHEMICAL SOLUTION DEPOSITION AND POLYMER NANO-COMPOSITES. [Thesis]. Purdue University; 2016. Available from: https://docs.lib.purdue.edu/open_access_theses/1119

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation


Wright State University

2. Cheekati, Sree Lakshmi. GRAPHENE BASED ANODE MATERIALS FOR LITHIUM-ION BATTERIES.

Degree: MSEgr, Materials Science and Engineering, 2011, Wright State University

Improvements of the anode performances in Li-ions batteries are in demand to satisfy applications in transportation. In comparison with graphitic carbons, transition metal oxides as well as graphene can store over twice amount of lithium per gram. Recently, graphene-based anodes for Li-ion batteries are under extensive development. In this research, lithium storage characteristics in graphene oxide (GO), GO/Manganese acetate (GO/MnAc), GO/manganese oxide (GO/MnOx) composites and Nano Graphene Platelets (NGP) were studied. The prepared GO delivered reversible capacities of 706mAh/g with an average columbic efficiency of 87%. Reversible capacities of 533 mAh/g were observed for GO/MnAc composite. GO/MnOx nanocomposite thermal annealed at 400°C in inert atmosphere exhibited high reversible charge capacity of 798 mAh/g with an average columbic efficiency of 95% and capacity fade per cycle of 1.8%. The EIS spectra of discharge and charge profiles of GO and GO/MnOx composites were analyzed to investigate the kinetics evolution of electrode process at different stages of lithium storage. Advisors/Committee Members: Huang, Hong (Advisor).

Subjects/Keywords: Alternative Energy; Automotive Materials; Chemistry; Energy; Engineering; Materials Science; Metallurgy; Nanotechnology; Lithium Ion Batteries; Anode Materials; Graphene; Graphene Oxide; Nano Graphene Platelets; Graphene Oxide Manganese Acetate Composite; Graphene Oxide Manganese Oxide Nano Composite; Electrochemical Impedance Spectroscopy; Graphene Based Anode Materials

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Cheekati, S. L. (2011). GRAPHENE BASED ANODE MATERIALS FOR LITHIUM-ION BATTERIES. (Masters Thesis). Wright State University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=wright1302573691

Chicago Manual of Style (16th Edition):

Cheekati, Sree Lakshmi. “GRAPHENE BASED ANODE MATERIALS FOR LITHIUM-ION BATTERIES.” 2011. Masters Thesis, Wright State University. Accessed October 17, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=wright1302573691.

MLA Handbook (7th Edition):

Cheekati, Sree Lakshmi. “GRAPHENE BASED ANODE MATERIALS FOR LITHIUM-ION BATTERIES.” 2011. Web. 17 Oct 2019.

Vancouver:

Cheekati SL. GRAPHENE BASED ANODE MATERIALS FOR LITHIUM-ION BATTERIES. [Internet] [Masters thesis]. Wright State University; 2011. [cited 2019 Oct 17]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=wright1302573691.

Council of Science Editors:

Cheekati SL. GRAPHENE BASED ANODE MATERIALS FOR LITHIUM-ION BATTERIES. [Masters Thesis]. Wright State University; 2011. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=wright1302573691

3. Kostagiannakopoulou, Christina. Ανάπτυξη νέων πολυ-λειτουργικών δομικών σύνθετων υλικών με ενίσχυση πολλαπλής κλίμακας για βελτιωμένη θραυστομηχανική συμπεριφορά.

Degree: 2017, University of Patras; Πανεπιστήμιο Πατρών

The use of nanoparticles as reinforcing phase into the matrix of Fibrous Composite Materials results to composites with multi-scale reinforcements. The fibrous phase at micro/macro scale defines the macroscopic mechanical behaviour of composites, while the nano-phase enhances the fracture behaviour of the composites, by introducing additional energy absorption mechanisms during fracture, thus concluding to composites with improved damage tolerance. In addition, the introduction of carbon nano-particles into the matrix of composites has shown considerable improvement in electrical and the thermal conductivity, thus resulting in a multi-functional composite. The present study investigates the use of Graphene Nano-Species (GNSs), such as Graphene Nano-Platelets composed of 4,12 and 25 graphene layers and Thermally Reduced Graphene Oxide, by introducing them homogeneously into the matrix of composites to produce Graphene reinforced structural CFRPs (Gr-CFRP). Process, development, manufacturing and multi-functional performance assessment of Gr-CFRP at various GNSs concentrations and types has been investigated.

Η χρήση νανο-σωματιδίων ως ενισχυτική φάση της μήτρας Ινωδών Σύνθετων Υλικών (ΙΣΥ) οδηγεί σε Σύνθετα Υλικά (ΣΥ) με ενίσχυση πολλαπλής κλίμακας. Η ινώδης ενίσχυση στη μίκρο/μάκρο κλίμακα καθορίζει τη μακροσκοπική μηχανική συμπεριφορά των ΣΥ ενώ η ενίσχυση στη νανο-κλίμακα βελτιώνει τη θραυστο-μηχανική συμπεριφορά των ΣΥ εισάγοντας συμπληρωματικούς μηχανισμούς απορρόφησης ενέργειας κατά τη θραύση, προσδίδοντας βελτιωμένη ανοχή στη βλάβη. Την τελευταία δεκαετία έχει παρατηρηθεί ότι η εισαγωγή νανο-σωματιδίων άνθρακα στη μήτρα ΣΥ βελτιώνει σημαντικά τις ηλεκτρικές και θερμικές ιδιότητες των ΣΥ συμβάλλοντας σημαντικά στην ενίσχυση της πολυ-λειτουργικότητάς τους. Στη παρούσα διδακτορική διατριβή αναπτύχθηκαν δομικά ΣΥ με ενίσχυση ινών άνθρακα και πολυμερή μήτρα τροποποιημένη με διάφορα γραφιτικά νανο-σωματίδια (Gr-CFRP). Πιο συγκεκριμένα, χρησιμοποιήθηκαν πολυστρωματικά γραφένια 4, 12 και 25 γραφιτικών επιπέδων καθώς και οξείδια του γραφενίου σε διάφορες περιεκτικότητες ώστε να επιτευχθεί ενίσχυση πολλαπλής κλίμακας. Επιπλέον, μελετήθηκε η ανάπτυξη διαδικασιών επεξεργασίας και παραγωγής Gr-CFRP ενώ παράλληλα διερευνήθηκε η πολυ-λειτουργικότητά τους. Αρχικά, πραγματοποιήθηκε διερεύνηση της καταλληλότερης περιεκτικότητας και του τύπου των νανο-σωματιδίων γραφενίου στο υλικό της πολυμερούς μήτρας σε ΙΣΥ μέσω της μελέτης της θραυστο-μηχανικής συμπεριφοράς των νανο-ενισχυμένων ΙΣΥ σε συνθήκες θραύσης τύπου Ι και ΙΙ καθώς και μέσω της θερμικής και ηλεκτρικής τους αγωγιμότητας. Εν, συνεχεία αναπτύχθηκαν ΙΣΥ τροποποιημένα ταυτόχρονα με νανο-σωματίδια γραφενίου και νανο-σωλήνες άνθρακα προκειμένου να μελετηθεί αρχικά η συνεισφορά των πλεονεκτημάτων των νανο-σωματιδίων στη πολυ-λειτουργικότητα του τελικού συνθέτου καθώς και το ενδεχόμενο συνέργειας μεταξύ τους για τη βελτίωση των θραυστο-μηχανικών ιδιοτήτων. Τέλος ακολούθησε ανάλυση της μικρο-δομής των υλικών έχοντας ως στόχο την αναγνώριση και ανάδειξη των μηχανισμών…

Subjects/Keywords: Γραφένιο; Πολυ-στρωματικά γραφένια; Ινώδη σύνθετα υλικά; Θραυστο-μηχανικές ιδιότητες; Θερμική αγωγιμότητα; Ηλεκτρική αγωγιμότητα; Πολυ-λειτουργικότητα; Graphene; Graphene nano-platelets; CFRP; Fracture toughness; Thermal conductivity; Electrical conductivity; Multi-functionality

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Kostagiannakopoulou, C. (2017). Ανάπτυξη νέων πολυ-λειτουργικών δομικών σύνθετων υλικών με ενίσχυση πολλαπλής κλίμακας για βελτιωμένη θραυστομηχανική συμπεριφορά. (Thesis). University of Patras; Πανεπιστήμιο Πατρών. Retrieved from http://hdl.handle.net/10442/hedi/42130

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):

Kostagiannakopoulou, Christina. “Ανάπτυξη νέων πολυ-λειτουργικών δομικών σύνθετων υλικών με ενίσχυση πολλαπλής κλίμακας για βελτιωμένη θραυστομηχανική συμπεριφορά.” 2017. Thesis, University of Patras; Πανεπιστήμιο Πατρών. Accessed October 17, 2019. http://hdl.handle.net/10442/hedi/42130.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7th Edition):

Kostagiannakopoulou, Christina. “Ανάπτυξη νέων πολυ-λειτουργικών δομικών σύνθετων υλικών με ενίσχυση πολλαπλής κλίμακας για βελτιωμένη θραυστομηχανική συμπεριφορά.” 2017. Web. 17 Oct 2019.

Vancouver:

Kostagiannakopoulou C. Ανάπτυξη νέων πολυ-λειτουργικών δομικών σύνθετων υλικών με ενίσχυση πολλαπλής κλίμακας για βελτιωμένη θραυστομηχανική συμπεριφορά. [Internet] [Thesis]. University of Patras; Πανεπιστήμιο Πατρών; 2017. [cited 2019 Oct 17]. Available from: http://hdl.handle.net/10442/hedi/42130.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Kostagiannakopoulou C. Ανάπτυξη νέων πολυ-λειτουργικών δομικών σύνθετων υλικών με ενίσχυση πολλαπλής κλίμακας για βελτιωμένη θραυστομηχανική συμπεριφορά. [Thesis]. University of Patras; Πανεπιστήμιο Πατρών; 2017. Available from: http://hdl.handle.net/10442/hedi/42130

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

.