SBIR Phase I: One-Step Manufaturing Process for Low-Cost Silicon Carbide/Silicon Carbide Composites

SBIR 第一阶段：低成本碳化硅/碳化硅复合材料的一步制造工艺

• 批准号: 9661185
• 负责人: Witold Kowbel
• 金额: $ 7.5万
• 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: 1997
• 资助国家: 美国
• 起止时间: 1997-01-01 至 1997-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9661185&HistoricalAwards=false
• 关键词: SBIR; Phase; Step; Manufaturing; Process

*** 96-61185 Kowbel This Small Business Innovative Research (SBIR) Phase I project will investigate a low cost process to produce silicon carbide/silicon carbide (SiC-SiC) composites. These composites exhibit excellent mechanical, thermal, and corrosion properties. Their applications in aerospace and energy-related areas are greatly hindered by high manufacturing costs, lack of oxidation stable interfaces, and selectively poor creep resistance of the SiC fibers. Phase I will study a unique way to produce pure beta-SiC/beta-SiC composites via a direct chemical vapor reaction (CVR) of low-cost carbon-carbon (C-C) composites. CVR-derived fibers are expected to exhibit excellent creep resistance, while an in-situ generated porous SiC interface is expected to provide good fiber pull-out and good environmental stability. Lowering the cost of SiC-SiC composites not only will expand applications in aerospace industries, but also provide opportunities in civilian industries such as automotive, burners, combusters, process equipment, heat recovery equipment, and separation/filtration. ***

*96-61185科贝尔这个小型企业创新研究第一阶段项目将研究一种生产碳化硅/碳化硅(碳化硅-碳化硅)复合材料的低成本工艺。这些复合材料表现出优异的机械、热和腐蚀性能。其在航空航天和能源相关领域的应用受到制造成本高、缺乏稳定的氧化界面以及选择性地降低碳化硅纤维的抗蠕变性能的限制。第一阶段将研究一种独特的方法，通过低成本碳-碳(C-C)复合材料的直接化学气相反应(CVR)来生产纯β-碳化硅/β-碳化硅复合材料。CVR衍生纤维有望表现出优异的抗蠕变性能，而原位生成的多孔碳化硅界面有望提供良好的纤维拔出能力和良好的环境稳定性。降低碳化硅-碳化硅复合材料的成本不仅将扩大在航空航天行业的应用，还将在汽车、燃烧器、燃烧器、工艺设备、热回收设备和分离/过滤等民用行业提供机会。***