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Showing 1 to 12 of 12 for “"Eutectics"”.
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Interfacial Microstructures in Divorced Graphitic Eutectics (Tem, Study)
… microstructures in two divorced graphitic eutectics have been investigated using transmission electron microscopy (TEM). Both systems show a coarse minor precipitate, graphite, whose morphology depends strongly on trace elements.
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Solidification of eutectics utilizing directional solidification and confining templates for optical metamaterial applications
… solidification. Due to the periodic nature of eutectics, these materials are a great choice for applications in optical metamaterials. The goal of this thesis is to understand and apply directional solidification of eutectics to form unique structures with structural motifs, which behave as …
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Advanced techniques for chemical gradient, eutectic metal, and crystallized polymer film additive manufacturing
… attempts to print low melting point metal eutectics using an E-jet printer are described. Unsuccessful techniques are likewise described so that they may be avoided in the future. A system to print metal eutectics by E-jet is devised and outlined so that future researchers can expediate the …
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Concentrated solar power on demand
… operating with low cost nitrate or chloride salt eutectics at temperatures approaching 600 'C and 1000 'C, respectively. The integral storage capabilities of the receiver can be sized according to local needs, thereby enabling power generation on demand.
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Studies of impurities in crystalline pharmaceuticals and related compounds
… incorporate into the host crystals. Formation of eutectics and eutectics with solid solutions are reported as well as modifications of these behaviours due to polymorphism. Chapter four is concerned with the application of a set of calculations and parameters based on HPLC data to quantify …
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Molten Salt Nanomaterials for Thermal Energy Storage and Concentrated Solar Power Applications
… the specific heat capacity of these molten salt eutectics was found to be enhanced by as much as ~ 26 percent on mixing with nanoparticles at a mass fraction of ~ 1 percent. The resultant properties of these nanomaterials were found to be highly sensitive to small variations in the synthesis …
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Change Of Metal Oxidation State At High Temperature, Impact Of Temperature And Reactive Gases
… that are in the range of 25-41,000 mg/kg forming eutectics that accelerate corrosion on the metal alloys present. Similarly in catalysis, there are reactive intermediates that remain attached to the catalytic metal surfaces resulting in volatile metal complexes forming leading to losses via …
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Controlling the emergent microstructures in template-directed eutectic solidification for optical applications
… the literature on directional solidification of eutectics and template-directed assembly, and establishes the criteria for selecting the starting eutectic and template materials for optical applications. In Chapter 2, molten salt eutectic material, AgCl-CsAgCl2, was explored as photonic crystals. …
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Deep Eutectic Solvents Synthesis, Characterization and Applications in Pretreatment of Lignocellulosic Biomass
… spectra confirmed the formation of eutectics and hydrogen bonds in DESs. Comprehensive characterization of the synthesized DESs was carried out. DESs physicochemical and thermal properties including pH, density, refractive index (RI), surface tension, viscosity, octanol-water …
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Process development for high powered amplifier Au/Sn eutectic die attach via vacuum furnace
<p>This research was conducted to develop and qualify a vacuum GaAs semiconductor monolithic microwave integrated circuit die attach process. Research was done to understand the causes and effects of voiding levels on device performance and reliability. Simultaneous investigation was done to …
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Understanding the Solid State, Solubility and Dissolution Behavior of Cefuroxime Axetil Diastereomers in Interactive Mixture Formulations
<p>The objective of the first part of this work was to understand the solid-state and solution behavior of a cephalosporin antibiotic prodrug, cefuroxime axetil (CFA). CFA is present in commercial products as a mixture of diastereomers, which commonly form eutectic mixtures. A phase diagram was …