自愈合碳化硅陶瓷基复合材料研究及应用进展  

Progress on Self-Healing Silicon Carbide Ceramic Matrix Composites and Its Applications

作　　者：张立同[1] 成来飞[1] 徐永东[1] 刘永胜[1] 曾庆丰[1] 董宁[1] 栾新刚[1] 

机构地区：[1]西北工业大学超高温结构复合材料国防科技重点实验室,西安710072

出　　处：《航空材料学报》2006年第3期226-232,共7页Journal of Aeronautical Materials

摘　　要：为了满足高推重比航空发动机长时热力氧化环境的使用需求,连续纤维增韧碳化硅陶瓷基复合材料正朝自愈合方向发展。本文介绍自愈合碳化硅陶瓷基复合材料的微结构与性能,自愈合与强韧化机理,制造方法和工艺特点及其在航空发动机热端部件的应用情况,表明多元多层微结构形成了“层层设防,就地消灭”的氧化防御体系,是复合材料实现自愈合与强韧化的关键。自愈合碳化硅陶瓷基复合材料能够满足发动机高温服役环境要求,显著降低发动机的结构重量,从而有效提高发动机的推重比。Continuous fiber reinforced silicon carbide ceramic matrix composites were developing towards possessing self-healing properties for the need of high thrust mass ratio aerospace-engine working in thermal oxidizing environment.The microstructure and properties of a self-healing silicon carbide matrix composite were introduced.The mechanism of toughness and stiffness of the composite and the self-healing behaviors were commented.The application progress of self-healing silicon carbide component was summarized...

关 键 词：自愈合 碳化硅陶瓷基复合材料 应用 多元多层微结构 

分 类 号：TB332[一般工业技术—材料科学与工程]