炭/炭复合材料表面等离子喷涂钨涂层结构与性能研究  

Study on Structure and Performance of Plasma-spraying Tungsten Coatings on Carbon-carbon Composites

作　　者：刘建军[1] 李铁虎[1] 郝志彪[2] 张宏葳[2] 

机构地区：[1]西北工业大学材料科学与工程学院,陕西西安710072 [2]中国航天科技集团四院43所,陕西西安710025

出　　处：《表面技术》2003年第3期28-30,共3页Surface Technology

摘　　要：采用等离子喷涂工艺在炭 /炭复合材料表面喷涂成型了 0 .8～ 1mm厚的钨涂层和含有 0 .0 3～ 0 .0 8mm钽中间涂层的钨涂层。SEM和金相显微镜分析表明 :涂层与基体之间结合良好 ,涂层组织致密 ,孔隙较小。涂层剪切强度 5～ 8MPa ,压缩强度大于 10 0MPa ,相关分析表明试样破坏首先发生在基体材料内部。Tungsten coatings of 0.8～1mm thickness, uncontaining and containing 0.03～0.08 tantalum intermediate coatings, are successfully deposited by plasma spraying technique on carbon carbon composites. Coatings are investigated by SEM and metalloscope. These resultes indicate that adhesion between substrate and coating is good,the coating is dense, and little caveties exists. Shear strength of coatings is 5～8 MPa, compress strength is higher than 100 MPa. Study shows that the failure occurrs mainly in the substrate.

关 键 词：炭/炭复合材料 钨涂层 涂层结构 涂层强度 

分 类 号：V250[一般工业技术—材料科学与工程] TG174.442[航空宇航科学与技术—航空宇航制造工程]