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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 14 of 14 for “"anodizing"”.
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An Investigation of Improving Wear of 390 Die-cast Aluminum Through Hardcoat Anodizing
… coating. It was hypothesized that Hardcoat anodizing would follow the theory of Archard's equation and increase the wear resistance of 390 die-cast aluminum when sliding against a composite rubber belt. Standardized wear tests were implemented in order to test this theory. The results of the …
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Electrical characterization of thin film nanostructure templates
An improved apparatus for anodizing aluminum films on Si substrates is presented. In addition, an explanation is given for adapting the system to SiC and glass substrates. The system presented is optimized for throughput and safety to focus on volume production. MOS capacitors created with the …
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Triage and treatment of strategic and operational problems in a semiconductor equipment consumables manufacturing company
… either overhead costs or the costs of an anodizing operation across product families. In light of the recent corporate pressures to improve financial performance, this area was chosen early as one on which to focus the author's efforts. Several cost models were developed and iterated to …
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An Experimental Investigation of GLARE and Restructured Fiber Metal Laminates
… These included sandblasting, Phosphoric Acid Anodizing (PAA), and AC-130 Sol-Gel treatment. Woven S-2 glass, an epoxy adhesive, and aluminum alloy sheet metal were used to fabricate restructured FMLs using time and cost effective procedures. Additional microscopy and tensile testing allowed …
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An Investigation of Wear-Resistant Coatings on an A390 Die-Cast Aluminum Substrate
… hard chrome, electroless nickel metal, hard coat anodizing and composite ceramic coating. The primary clutch sheave material is a die-cast A390 aluminum. A wear test stand was developed to duplicate wear found on CVTs currently in use. The wear was evaluated using four methods. First, the change …
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Synthesis, characterization and modeling of interphases created between titanium dioxide nanotubes and various layers in biological, physical and mechanical systems
… a plate surface and an implant surface. Suitable anodizing conditions result in titanium dioxide nanotube layers on pure titanium plates, while the same conditions can only enable the formation of pores on a titanium implant surface. A great need exists for a deeper understanding of the formation …
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Fabrication of thin film nanoscale alumina templates
… is created by electrochemically etching, or anodizing, a thin layer of aluminum deposited on a silicon or a glass substrate. When aluminum is anodized, a two dimensional periodic network of Al2 O3 cells with uniform tubular pores is formed, the diameter of which can be precisely varied …
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Effect of relative humidity on fatigue of anodized 2024-T351 aluminum in completely reversed torsion
… oxide and the polishing of the specimens before anodizing showed no effect. The scatter in the investigation did not change with humidity, coating thickness, polishing or coating.
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Projeto e fabricação de um reator para tratamento superficial de implantes por oxidação eletrolítica a plasma
… vapor deposition, chemical vapor deposition, anodizing, plasma spraying and Plasma Electrolytic Oxidation (PEO). Among these techniques, PEO is an attractive technique for biomedical applications because of its characteristics that favor osseointegration. However, the characteristics and …
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Porous anodic aluminum oxide scaffolds; formation mechanisms and applications
… scaffolds on any conducting substrate (AS) by anodizing an Al/W/AS tri-layer. Structural and kinetic study of the WO₃ extrusion revealed that the anodization of W consumes a fixed thickness of the W layer in acidic electrolytes under specific anodization conditions. Based on this study, the …
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Lead - Free Piezoelectric Based Magnetoelectric Composites
… templates were prepared by two step aluminum anodizing. The PZT nanorods were synthesized by vacuum infiltration of PZT precursor solutions and exhibited uniform diameter of 90 nm and aspect ratio of 10 with vertical in respect to the Pt-Si substrate. The piezo-response of PZT nanorods showed …
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Vliv změny vstupních parametrů na výrobu nanoporézní keramiky
Předkládaná práce se zabývá zkoumáním a testováním kyselin a podmínek ve kterých je výrobu nanoporézní keramiky na tenké hliníkové vrstvě nejefektivnější a nejkvalitnější. V této práci je popsán postup výroby nanoporézních struktur s póry o rozměrech 15–400 nm v závislosti na použitém elektrolytu. …