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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 18 of 18 for “"advanced ceramics"”.
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JOINING OF CERAMIC COMPOSITES AND ADVANCED CERAMICS
Ceramics and Ceramic Matrix Composites (CMC) are well known as useful materials for harsh environment applications. Ceramic components have been widely used as abrasives, cutting tools, nuclear fuel elements, catalyst supports and astronomical telescope mirrors. Generally speaking, ceramics and CMC …
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Freeform extrusion fabrication of advanced ceramics and ceramic-based composites
"Ceramic On-Demand Extrusion (CODE) is a recently developed freeform extrusion fabrication process for producing dense ceramic components from single and multiple constituents. In this process, aqueous paste of ceramic particles with a very low binder content ( < 1 vol%) is extruded through a …
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A strategic analysis of the advanced ceramics industry for heat engine applications
Thesis: M.S., Massachusetts Institute of Technology, Sloan School of Management, 1986
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Synthesis, structural characterization, and mechanical properties of advanced ceramics prepared via sol-gel
Esta tesis doctoral comprende una serie de artículos enfocados en la fabricación de materiales cerámicos (principalmente alúmina, pero también circona) reforzados con nanofases de carbono (grafeno y nanotubos de carbono). La base de la tesis consiste en la preparación de cerámicas avanzadas …
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Evaluation of the advanced ceramics market for new applications of three dimensional printing
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1995.
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Sub-critical crack growth in a ceramic and a ceramic composite: Effects of monotonic loads, cyclic loads, and high temperatures
Advanced ceramics have toughened microstructures which resist crack propagation, and also allow considerable sub-critical crack growth prior to failure. The sources of toughening processes are the microstructural elements in the crack wake which induce closure tractions on the crack. This …
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Rotary ultrasonic machining of ceramics: Characterization and extensions
Advanced ceramics are attractive for many engineering applications due to their superior special properties. One of the reasons hindering their market expansion is the high cost of machining with current technology. There is a crucial need for the development of machining processes which are …
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Additive manufacturing of non plastic porcelain material by direct writing and freeze casting.
Two direct consolidation methods usually used for advanced ceramics have been combined in this project in order to develop a novel fabrication route for traditional ceramics. Specifically the method used is based on the Additive Manufacturing extrusion process using direct writing of high solid …
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Business strategy and the environment in a traditional manufacturing sector
… market conditions. The sector studied is the ceramics industry (including tableware & ornamental-ware, sanitary ware & tiles, bricks, industrial & advanced ceramics and refractories) in the UK and France. Unlike the automotive, oil, chemical, steel or metal processing sectors, this industry is …
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Structural Characterization and Material Property Evaluation in Polymer-Derived SiOC Ceramics and Ceramic Nanocomposites
The field of advanced ceramics will experience significant growth in the upcoming decade to address increasing demands for multifunctional temperature- and corrosion-resistant materials for aerospace, energy, and electronics sectors. Polymer-derived ceramics (PDCs) and specifically polymer-derived …
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A study of mechanochemical activation in solid-state synthesis of advanced ceramic composites
… of the material in solid-state synthesis of advanced ceramics.
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Near-Net Shaping and Additive Manufacturing of Ultra-High Temperature Ceramics via Colloidal Processing
… a ceramic green body. For difficult-to-densify ceramics such as the UHTCs, which find their place in extreme environment applications, precise control of each step of the manufacturing process is key. In this work, a fundamental study on the interaction between particles in non-aqueous slip …
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Development of A closed Loop Control System for Vibration Assisted Grinding
… materials such as glasses, steel alloys and advanced ceramics is such that conventional grinding and polishing techniques can no longer meet the requirements of today’s precision manufacturing community. However, it is essential and much needed to undertake such processes based on a …
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Vibration assisted machining: Modelling, simulation, optimization, control and applications
… materials such as glasses, steel alloys and advanced ceramics, is such that conventional grinding and polishing techniques can no longer meet the requirements of today's precision manufacturing engineering. Particularly, in order to undertake micro-milling of optical glasses or other …
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Characterisation of silica in Equisetum hyemale and its transformation into biomorphous ceramics
… of silica for the synthesis of biomorphous ceramics. The thesis comprises a comprehensive experimental study of silica accumulations in E.hyemale using different characterisation techniques at all hierarchical levels. The obtained results shed light on the local distribution, chemical form, …
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Využití 3D tisku k přípravě pokročilých keramických materiálů
V této závěrečné práci jsou shrnuty hlavní metody 3D tisku sloužící ke tvarování pokročilé keramiky, vzájemné srovnání a zmínění jejich předností a nevýhod. V experimentální části byly připraveny dva druhy keramických suspenzí, které byly použity k ověřování možnosti využití komerčně dostupné 3D …
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Colloidal Processing, Microstructural Evolution, and Anisotropic Properties of Textured Ultra-High Temperature Ceramics Prepared Using Weak Magnetic Fields
The texturing of ultra-high temperature ceramics (UHTCs) using weak magnetic fields is studied and developed for the first time. Textured UHTCs were prepared by magnetically assisted slip casting (MASC) in weak magnetic field (B ~ 0.5 T). Analytical calculations describing the balance of torques …
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Grinding of advanced ceramic materials: experimental and theoretical investigation into crack initiation and propagation
Advanced ceramic materials are assuming increasing industrial importance because of their special properties. However, the extreme hardness and brittleness of these materials make their machining efficiency low. The difficulty arises from shaping ceramics whilst conserving their surface integrity, …