SBIR Phase II: Silicon Carbide Whisker Reinforced Alumina Coatings on SiC-SiC Composites

SBIR 第二阶段：SiC-SiC 复合材料上的碳化硅晶须增强氧化铝涂层

• 批准号: 9531427
• 负责人: Witold Kowbel
• 金额: $ 30万
• 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 1999-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9531427&HistoricalAwards=false
• 关键词: SBIR; Phase; II; Silicon; Carbide

*** 9531427 Kowbel This Small Business Innovation Research Phase II project is devoted to demonstrating the uniqueness of corrosion protection of silicon carbide ceramics (SiC-SiC composites). The SiC-SiC composites used as the substrate contain high temperature creep resistant chemical vapor reaction (CVR) SiC fibers developed by the firm. These fibers are expected to greatly enhanced market penetrations of chemical vapor infiltration (CVI) SiC-SiC composites in energy-related markets by providing high benefit to cost ratios. However, the use of these composites in corrosive environments at temperatures above 1200 degrees C calls for corrosion protection coatings. The alumina (SiCw - A12O3) coatings produced in Phase I offer a great potential in this area. The successful completion of Phase I demonstrated dense, adherent, crack-free, thermal shock resistant coatings deposited on a SiC substrate. In the Phase II this technology will be extended to include SiC-SiC tubular substrates with the goal of achieving excellent corrosion protection at temperatures up to 1400 degrees C. In addition, efforts will be made to obtain high fracture toughness SiCw-Al2O3 coatings on SiC substrates. The success of the Phase II effort will ensure several commercial applications of this technology in energy-related, cutting tools as well as other areas. The potential applications include heat exchanger tubes, gas turbine engines, advanced aircraft engines, heat engine, filter applications and cutting tools. ***

*9531427科贝尔这个小企业创新研究第二阶段项目致力于展示碳化硅陶瓷(碳化硅-碳化硅复合材料)防腐的独特性。用作基材的碳化硅复合材料含有该公司开发的耐高温蠕变化学气相反应(CVR)碳化硅纤维。这些纤维有望通过提供高效益成本比，极大地提高化学气相渗透(CVI)碳化硅-碳化硅复合材料在能源相关市场的市场渗透率。然而，在1200摄氏度以上的腐蚀性环境中使用这些复合材料需要防腐涂层。在第一阶段生产的氧化铝(SiCw-Al_2O_3)涂层在这一领域具有巨大的潜力。第一阶段的成功完成展示了在碳化硅衬底上沉积的致密、附着力好、无裂纹、抗热震的涂层。在第二阶段，这项技术将扩展到包括碳化硅-碳化硅管状衬底，目标是在高达1400摄氏度的温度下实现出色的防腐性能。此外，还将努力在碳化硅衬底上获得高断裂韧性的SiCw-Al_2O_3涂层。第二阶段工作的成功将确保这项技术在与能源有关的切割工具以及其他领域的几个商业应用。潜在的应用包括热交换器管、燃气轮机发动机、先进飞机发动机、热机、过滤器应用和切割工具。***