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 7 of 7 for “"Polymer-Derived Ceramic"”.
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Nanostructured Polymer-Derived Ceramic Aerogels for Environmental and Energy Applications
… innovative and green technologies. Among others, ceramic materials have shown a growing flexibility towards green and functional applications also thanks to the Polymer-Derived Ceramic route (PDC). This pathway to ceramic materials has the advantage of controlling their composition at the …
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Novel Conceptual Design And Anlysis Of Polymer Derived Ceramic Mems Sensors For Gas Turbine Environment
… carbide (SiC) and silicon nitrite (Si3N4) –based ceramic MEMS sensors. But those technologies present some limitation such as narrow processing method, high cost (materials and processing cost), and limited using temperatures (typically < 800 C). In this research we propose to develop two sensors …
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Polymer-Derived Ceramic Coatings for Stress and Corrosion Resistance in Stainless Steel: Optimization of Thermal Stability and Structural Integrity
… on the development and characterization of polymer-derived ceramic (PDC) coatings, particularly SiON and SiOCN, aimed at enhancing corrosion resistance, thermal stability, and structural integrity of stainless steel in harsh environments. Using perhydropolysilazane (PHPS) and its …
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Synthesis and indentation of boride and carbide coated carbon nanotube composite microstructures
… and pyrolysis of a silicon oxycarbide (SiOC) polymer derived ceramic leading to coating thickness from 8 nm to full infiltration. Both coatings enable the infiltration of CNT pillars and lead to a significant increase in stiffness and strength. Nanoindentation tests using a flat punch were …
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Surface Patterned Ceramics Via Breath Figures Method With Potential Application As Implant Coatings
Surface porous silicon based ceramics are a class of materials with excellent mechanical, physical and chemical properties and for this reason they are widely used in different fields of application. The resultant properties of these material are due principally to the combination of the chemical …
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Fundamental Understanding and Functionality of Silicon Oxycarbide
Silicon oxycarbide (SiOC) is a unique polymer-derived ceramic (PDC) containing silicon, oxygen, and carbon atoms in the form of an amorphous network structure. The phase separation of SiOC is determined by polymeric precursors, pyrolysis temperatures, and atmosphere, which results in different …
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Advanced covalent ceramics from organosilicon polymers for sustainable energy and environment
… thermal degradation of the liquid-phase polymers of molecular precursor-derived ceramics offer them excellent engineering properties. Amorphous ceramic phase and resistance to crystallization up to 1400 °C, high-temperature stability, and intense photoluminescence are some of the …