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 11 of 11 for “"Bimetal"”.
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Synthesis and potential application of Fe3+/Mn2+ bimetal and hexadecyltrimethylammonium bromide (HDTMA-Br) modified clayey soils for arsenic removal in groundwater
… In the third section of this work, Fe-Mn bimetal oxide modified kaolin clay was successfully synthesized by precipitating Fe3+ and Mn2+ metal oxides to the interlayer surface of kaolin clay. Modification of kaolin clay increased the surface area from 19.2 m2/g to 29.8 m2/g and further v …
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Custom engineered nanomaterials for energetics and energy applications
… and hydrogen peroxide. Lastly, a less sensitive bimetal nano-powder for replacement of commonly used nano-sized aluminum is prepared by electro-exploded wires of pure metals. Morphology and phase compositions of nanomaterials are characterized by scanning electron microscopy (SEM), transmission …
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Tepelná spoušť ve spínacích přístrojích
… řešení. Největší důraz je zde kladen na bimetal jako na základní konstrukční prvek tepelné nadproudové spouště. Mimo materiálů, které jsou nejvhodnější k výrobě bimetalu, jsou zde také podrobně analyzovány parametry bimetalu potřebné k jeho návrhu. Dále nás práce seznamuje s elementárními …
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3D modeling and integration of current and future interconnect technologies
… materials - copper (Cu), tungsten (W) and Cu-W bimetal are considered. From the analysis it can concluded that W would be better for high frequency applications due to lower transmission coefficient. Cu offers higher conductivity, but it has larger thermal expansion coefficient mismatch with …
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A biomechanical investigation of the structure--function relationships in the human tongue
… bending, the tongue was modeled by a thermal bimetal strip analog wherein thermal contraction approximated muscle fiber activation.
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Processing and Characterization of Light Metal Matrix Composites (LMMCS)
An initial bimetal magnesium/aluminium (Mg shell / Al core) macro-composite containing millimeter-scale unthreaded Al core reinforcement was fabricated via casting and hot-extrusion. This macro-composite was characterized in detail and conceptually developed through 3 stages. Initially, the Al …
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Materials Design for Advanced Nuclear Energy Systems: Refractory High Entropy Alloys and Metallic Multilayer Composites
… I use interfacial self–ion irradiation along the bimetal interface within 2 MMLC systems to shed light on the radiation damage behavior of the interfacial region. Radiation–enhanced diffusion was observed in one MMLC, and a Cr-rich phase is observed along the interface in both MMLCs. The …
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Application of localized hybrid methods of stress analysis to some problems in the mechanics of composites
… hybrid method. One is a thermally loaded bimetal plate, and the other involves the Iosipescu shear specimen popularly used to determine the shear modulus and strength of a fiber reinforced composite. Before applying the localized hybrid analysis, the mechanics of the problems are discussed …
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Laser Directed Energy Deposition of tool steels; Investigating the heat treatment strategies and other potentialities of LDED
… of this work demonstrates that the production of bimetallic specimens or compositionally graded (CG) material can be a successful approach in this regard. Bimetal specimens with a hard surface (Osprey® MAR-60HRC) and tough core (Osprey® 18Ni300) were prepared successfully. The fracture toughness …
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The recovery of valuable base metals from electronic waste using a biological matrix extracted from Black soldier flies
… ferric, copper and aluminium ions in single and bimetal solutions. The adsorbed metals were then eluted using 0.1 M H2SO4. Precipitation studies were also conducted with various concentrations of copper in a ferrous, copper and aluminium solution. The techno-economic feasibility of the …
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Synthesis and Investigation of Nanomaterials by Homogeneous Nonaqueous Solution Phase Reactions
… the following studies. Secondly, we synthesized bimetallic nanomaterials in this system, such as Fe50Co50 alloy and Bi doped with Mn. For FeCo alloy, after annealing at 500 °C, a pure phase of Fe50Co50 was obtained. And we first synthesized the nanowires of bismuth doped with manganese. By …