摘要
采用包渗法制备了Cf/SiC陶瓷基复合材料MoSi2 —SiC—Si防氧化涂层 ,研究了渗层同埋粉关系、包渗时间对包渗结果的影响 ,并对涂层防氧化性能进行了分析。结果表明 :包渗法制得的涂层致密、无裂纹 ,涂层起到了良好的防氧化作用 ,140 0℃在空气中氧化 1h后试样的质量保留率为 94.1% ,保留强度为2 94.
The coating on C f/SiC ceramic matrix composites was prepared by cementation. The relations between coating performance and cementaion powder,cementation hour were studied ,and the oxidation resistance behavior of the coating was investigated. Test results show that the coating is very dense and has no surface crack after 1 h oxidizing in air at 1 400℃. So 94.1% of mass and 294.0 MPa of strength was retained as a result.
出处
《宇航材料工艺》
CAS
CSCD
北大核心
2000年第3期45-48,共4页
Aerospace Materials & Technology
