The Development of a High Temperature Stable Silicon CarbideFiber

高温稳定碳化硅纤维的研制

• 批准号: 8700764
• 负责人: James Withers
• 金额: $ 20.8万
• 依托单位: Materials and Electrochemical Research Corporation (MER)
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-12-01 至 1990-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8700764&HistoricalAwards=false
• 关键词: Development; Temperature; Stable; Silicon; CarbideFiber

This is a Phase II Small Business Research Initiative grant to continue the progress achieved during the Phase I grant. During Phase I, it was demonstrated that a silicon carbide fiber was produced which exhibited tensile strength of three hundred thousand pounds per square inch, an elastic modulus of fifty eight million pounds per square inch, virtually no degradation of properties after exposure to temperatures of twelve hundred degrees centigrade for three hours. The Phase II program seeks to optimize the processing of the fiber to achieve strength in excess of five hundred thousand pounds per square inch, elastic modulus of sixty million pounds per square inch, with similar thermal stability. Fibers of silicon carbide are used in ceramic. and metal. matrix composites. These materials are used in heat engines. The current research is aimed at improving the resistance of the fibers to high temperatures. The development of this fiber will obviate the need for the United States to import silicon carbide fibers, and will provide an opportunity to export them.

这是第二阶段小型企业研究计划赠款，旨在延续第一阶段赠款期间取得的进展。 在第一阶段，生产出的碳化硅纤维的拉伸强度为每平方英寸三十万磅，弹性模量为每平方英寸五千八百万磅，在暴露于一千二百摄氏度的温度下三个小时后，性能几乎没有下降。 第二阶段计划旨在优化纤维的加工，以实现超过每平方英寸五十万磅的强度、每平方英寸六千万磅的弹性模量，并具有类似的热稳定性。 碳化硅纤维用于陶瓷。和金属。 基体复合材料。这些材料用于热机。 目前的研究旨在提高纤维的耐高温性能。 这种纤维的开发将消除美国进口碳化硅纤维的需要，并将为其出口提供机会。