Global ETD Search
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 20 of 39 for “"Other Materials Science and Engineering"”.
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Synthesis Of Graphene Nanomaterials And Their Application In Electrochemical Energy Storage
<p>The need to store and use energy on diverse scales in a modern technological society necessitates the design of large and small energy systems, among which electrical energy storage systems such as batteries and capacitors have attracted much interest in the past several decades. …
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Nanoindentation of Annealed and As-Sputtered Thin Films of Nickel Titanium Shape Memory Alloys
… be evaluated with the process parameters used and for changes in the process parameters. The mechanical properties are needed to design MEMS devices. A material of interest for MEMS devices is nickel titanium (NiTi) shape memory alloy (SMA) because of the high work output (~107 J/m3). This …
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Biomimetic Water-Responsive Structures: From Fundamental Mechanisms to Evaporation Energy Harvesting Applications
… in response to changes in relative humidity (RH) and convert evaporation energy (chemical potential of water) to mechanical energy. For example, the scales of pinecones open and release pine seeds when the environment is dry. Prior research has shown that the spores of Bacillus (<em>B</em>.) …
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Tribological Comparison of Traditional and Advanced Firearm Coatings
… firearms. This is accomplished by measuring and comparing several performance characteristics, such as: adhesion, hardness, wear resistance, friction control, and corrosion resistance. Appearance is not a factor since any exterior coating that is flashy can be subdued or camouflaged with …
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Time-Temperature Curing Relationship of an Adhesive Binder with Rice Straw
Rice straw is a global and proliferate agricultural waste whose production grossly outstrips viable uses. Current disposal methods are not sustainable, and more convenient methods – such as incineration – exude poor environmental stewardship. Although the direct use of straw bales in building …
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Effectiveness of Thermal Oxidation in Relation to Anterior Cervical Plates
… However, documented cases of implant failure and the potential for ACP corrosion raise concerns regarding any degradation of material resulting from extended implantation. In addition, abrasion during implantation may damage a section of the protective oxide layer, potentially exposing …
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Parametric Analysis of Particle Spreading with Discrete Element Method
… size, inter-particle friction, blade speed, and blade gap size affect the spreading process and, therefore, the final product quality. The objective of this study is to parametrically analyze the particle flow behavior and the effect of the aforementioned parameters on the spreading process …
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Development and Validation of Probabilistic Fatigue Models Containing Out-life Suspensions
<p>Author's abstract: In the area of reliability engineering it is necessary to be confident that a component or system of components will not fail under use for safety and cost reasons. One major mechanism of failure to a mechanical component is fatigue. This is the repetitious motion of loading …
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Degradation of High Voltage Glass Fiber-Reinforced Polymer Matrix Composites by Aggressive Environmental Conditions
… because of their advantages like lower weight and cost. However, they can be damaged by aggressive in-service conditions such as high temperature, ultraviolet radiation, moisture, ozone and corrosive environments. Different degradation mechanisms can develop in high voltage PMCs under those …
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The Effects of Applied Strain and Heat Treatment on the Properties of NiTi Wire During Shape Setting
… heat treatments during production and fabrication. This study investigates the effects of applied strain of 0-10% and heat treatments of 300-600ºC for times of 2-30 minutes during shape-setting of Ti–50.8 at% Ni wire with a nominal diameter of 0.495 mm and an initial transition …
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Characterization of Mixing in a T-style Microfluidic Chip
… mixing, the minimum length to complete mixing and evolution of mixing will be investigated. There are two types of mixing that occur within a microfluidic channel, diffusion and advection. In the beginning of the microfluidic chip, diffusion is the dominant form of mixing, and in the later …
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Deposition, Characterization, and Fabrication of a Zinc Oxide Piezoelectric Thin Film Microspeaker Using DC Reactive Sputtering
… a variety of acoustic applications was designed and fabricated using a thin film ZnO layer that was reactively DC sputtered onto a single crystalline n-type silicon substrate. When tested the microspeaker did not produce sound due to complications in the etching process, the thickness of the …
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Molecular to Macroscopic Understanding of Chloroaluminate Anion Intercalation in Rechargeable Aluminum-Graphite Batteries
… pose an urgent need to electrify transportation and better store intermittent renewable energy sources (e.g., solar and wind energy). For such large-scale battery applications, aluminum batteries are a promising “beyond lithium-ion” technology due to the high volumetric capacity, earth abundance, …
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Design, Fabrication, and Characterization of a Thin-Film Nickel-Titanium Shape Memory Alloy Diaphragm for Use in Micro-Electro-Mechanical Systems
… can be easily sputtered onto silicon wafers and annealed to create a crystallized shape memory alloy (SMA) film. Initial work on creating devices yielded cantilevers that were highly warped due to thin-film stress created during the sputtering process. The objective of this work was to create …
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