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You searched for subject:(Zinc electrodeposition coating). One record found.

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1. Jain, Rahul. Investigations on Multiscale Fractal-textured Superhydrophobic and Solar Selective Coatings.

Degree: MS, Mechanical Engineering, 2017, Virginia Tech

Functional coatings produced using scalable and cost-effective processes such as electrodeposition and etching lead to the creation of random roughness at multiple length scales on the surface. The first part of thesis work aims at developing a fundamental mathematical understanding of multiscale coatings by presenting a fractal model to describe wettability on such surfaces. These surfaces are described with a fractal asperity model based on the Weierstrass-Mandelbrot function. Using this description, a model is presented to evaluate the apparent contact angle in different wetting regimes. Experimental validation of the model predictions is presented on various hydrophobic and superhydrophobic surfaces generated on several materials under different processing conditions. Superhydrophobic surfaces have myriad industrial applications, yet their practical utilization has been severely limited by their poor mechanical durability and longevity. Toward addressing this gap, the second and third parts of this thesis work present low cost, facile processes to fabricate superhydrophobic copper and zinc-based coatings via electrodeposition. Additionally, systematic studies are presented on coatings fabricated under different processing conditions to demonstrate excellent durability, mechanical and underwater stability, and corrosion resistance. The presented processes can be scaled to larger, durable coatings with controllable wettability for diverse applications. Apart from their use as superhydrophobic surfaces, the application of multiscale coatings in photo-thermal conversion systems as solar selective coatings is explored in the final part of this thesis. The effects of scale-independent fractal parameters of the coating surfaces and heat treatment are systematically explored with respect to their optical properties of absorptance, emittance, and figure of merit (FOM). Advisors/Committee Members: Pitchumani, Ranga (committeechair), Cheng, Jiangtao (committee member), Boreyko, Jonathan Barton (committee member).

Subjects/Keywords: Superhydrophobic coatings; Fractal model; Contact angle prediction; Multiscale surfaces; Anti-corrosion; Fractal coating; Copper electrodeposition coating; Coating durability tests; Solar selective coating; Zinc electrodeposition coating

…superhydrophobic surfaces Electrodeposition of superhydrophobic zinc coating on zinc substrate was… …coating, magnetron sputtering, etching, and electrodeposition. The purposes of applying surface… …surface structures prepared through processes such as electrodeposition, spray coating, etching… …application of zinc coating generally requires an additional hexavalent chrome coating for strength… …processes based on electrodeposition to fabricate superhydrophobic copper and zinc coatings… 

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

APA (6th Edition):

Jain, R. (2017). Investigations on Multiscale Fractal-textured Superhydrophobic and Solar Selective Coatings. (Masters Thesis). Virginia Tech. Retrieved from http://hdl.handle.net/10919/78725

Chicago Manual of Style (16th Edition):

Jain, Rahul. “Investigations on Multiscale Fractal-textured Superhydrophobic and Solar Selective Coatings.” 2017. Masters Thesis, Virginia Tech. Accessed November 14, 2019. http://hdl.handle.net/10919/78725.

MLA Handbook (7th Edition):

Jain, Rahul. “Investigations on Multiscale Fractal-textured Superhydrophobic and Solar Selective Coatings.” 2017. Web. 14 Nov 2019.

Vancouver:

Jain R. Investigations on Multiscale Fractal-textured Superhydrophobic and Solar Selective Coatings. [Internet] [Masters thesis]. Virginia Tech; 2017. [cited 2019 Nov 14]. Available from: http://hdl.handle.net/10919/78725.

Council of Science Editors:

Jain R. Investigations on Multiscale Fractal-textured Superhydrophobic and Solar Selective Coatings. [Masters Thesis]. Virginia Tech; 2017. Available from: http://hdl.handle.net/10919/78725

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