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 505 for “"sintering"”.
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Sintering of silicon carbide
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 1986.
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Sintering of small particles
An atomistic approach to modeling the sintering of nanocrystalline alloys has been developed. It has been shown that there exist alloys that exhibit both nanostructured stability and undergo an accelerated sintering process [1], [2]. However, the widespread adoption of such alloys has been limited …
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Flash Sintering of Alumina-based Ceramics
Flash sintering is an electrical field-assisted consolidation technology and represents a very novel technique for producing ceramic materials, which allows to decrease sensibly both processing temperature and time. Starting from 2010, when flash sintering was discovered, different ceramic …
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Indirect selective laser sintering of ceramics
… together during shaping. Selective Laser Sintering (SLS) is capable of producing small complex polymer features, but how this capability translates to indirect SLS of ceramics is an open question. This dissertation aims to systematically investigate the limitations of using indirect SLS to …
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Understanding phase transformations during flash sintering
… factors in research for materials science. Flash sintering is both a method to densify ceramics within seconds and a method to rapidly synthesize materials. With the ability to use volatile precursors, avoid complete oxidation of elements, and locally cause transformations, flash sintering also …
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Understanding and Optimizing Nanophase Separation Sintering
Sintering provides a way of producing bulk products from materials below their melting temperatures. This creates an avenue to utilize material systems that are difficult to produce from other traditional manufacturing processes. While originally used to process ceramic components, it has become a …
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Sintering and grain growth of MgO
Thesis (Sc.D.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 1983.
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The kinetics of the sintering process
Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Metallurgy, 1947.
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Sintering of metal nanoparticles on model substrates
The sintering of precious metal catalysts is an important problem for the automotive and chemical process industry. As these precious metal catalysts sinter, the metal nanoparticles grow, which in return causes a loss in the overall surface area from loss of the number of available reaction sites. …
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Mechanisms of Flash Sintering in Cubic Zirconia
The recently discovered flash sintering technique has shown that the application of a sufficiently large dc electric field (E-field) to a ceramic during sintering can cause sintering at temperatures several hundred degrees below conventional temperatures with sintering rates that allow for …
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Thermomechanical modelling of powder compaction and sintering
… cold forming of ceramic powders and subsequent sintering is introduced and based on micromechanical modelling of the compaction process of granulates. Micromechanics is shown to yield an upper-bound estimate to the compaction curve of a granular material, which compares well with other models …
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Sintering techniques for microstructure control in ceramics
<p>Sintering techniques can be manipulated to enhance densification in difficult to sinter materials and to produce property enhancing microstructures. However, the interplay between materials, sintering techniques, and end properties is not fully understood in many material systems, and some …
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Synthesis and sintering of advanced ceramic materials
Desde hace un tiempo las sociedades avanzadas vienen reclamando un mayor cuidado del planeta, ya sea en los productos que consumen como en los procesos que se emplean para su obtención. Esta cuestión sumada al hecho de la inestabilidad creciente en el mercado de la energía ya sea del gas natural, …
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Synthesis and sintering of nanostructured multicomponent perovskites
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1998.
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The Effect of Microwave Energy on Sintering
… of material. This study investigates microwave sintering of inert matrix material (excluding actinide fuel) as an alternative route to conventional processing. It was observed that microwave sintering showed a reduction of 300°C in temperature required for full densification when compared to …
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Direct selective laser sintering of aluminium alloy powders
… aluminium powders, and binary liquid phase sintering (SLS) which occurred in blended bimodal or trimodal powders. That successful disruption of the oxide film is possible is a significant result, as is the constitutional effect on this. The spheroidisation and oxide disruption phenomena in …
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The sintering and stability of catalytic nano-particles
… in order to determine their stability and sintering behavior. Pd deposited on a flat single crystal substrate made of Al2O3 was characterized to determine if the mechanism of Ostwald ripening was solely dominated by vapor phase transport of metal atoms. The atoms emitted could be determined …
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Mixed oxides as sintering aids for silicon nitride
Includes bibliographical references (pages 194-202).
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In situ sintering study of model nickel catalysts
Lipid catabolism plays a significant role in the survival of M.tb inside the host. The development of analytical techniques such as gas chromatography mass spectroscopy (GCMS) and liquid chromatography mass spectroscopy (LC-MS) has become popular as metabolomics tools in the study of such catabolic …
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