Organometallic Routes to High-Performance Ceramics

高性能陶瓷的有机金属路线

• 批准号: 8706131
• 负责人: Leonard Interrante
• 金额: $ 56.3万
• 依托单位: Rensselaer Polytechnic Institute
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-08-01 至 1992-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8706131&HistoricalAwards=false
• 关键词: Organometallic; Routes; Performance; Ceramics

This project is in the area of the Materials Chemistry Initiative. An integrated, interdisciplinary research program will be pursued involving: (1) the synthesis of molecular and polymeric precursors to silicon nitride and carbide, (2) the application of these precursors to the preparation of ceramic materials, and (3) the analysis of the microstructure and properties of the ceramic end products to determine the dependence on processing variables. Various routes to organosilicon ring systems and ring-chain polymers will be investigated in pursuit of precursors to Silicon nitride and Silicon Carbide. The pyrolysis chemistry of these compounds will be studied to establish design parameters for the preparation of precursors which will yield the ceramic end product in the desired final form in high yield and purity. This will include the use of volatile compounds for chemical vapor deposition as well as oligomers and polymers of low volatility for the preparation of high purity powders of controlled morphology, as sintering aids and for direct pyrolysis to monolithic ceramics.

该项目属于材料化学领域 倡议 一个综合的，跨学科的研究计划 将追求涉及：（1）分子和 氮化硅和碳化硅的聚合物前体，（2） 这些前驱体在制备陶瓷中的应用 材料，以及（3）微观结构分析， 陶瓷最终产品的性能，以确定 依赖于加工变量。 各种路线， 有机硅环系统和环链聚合物将是 研究了氮化硅的前体， 碳化硅。 这些化合物的热解化学 将进行研究，以建立设计参数， 将产生陶瓷端的前体的制备 以高产率和纯度得到所需最终形式的产物。 这将包括使用挥发性化合物的化学 气相沉积以及低聚物和聚合物 挥发性的高纯度粉末的制备 控制形态，作为烧结助剂和直接用于 高温分解成单片陶瓷。