MoSi_2复相材料表面特性的研究  

The Characteristic Study on Surface Films of MoSi_2 Matrix

作　　者：许迪春[1] 徐庭献[1] 袁启明[1] 

机构地区：[1]天津大学材料科学与工程学院,天津300192

出　　处：《硅酸盐通报》2002年第4期12-15,共4页Bulletin of the Chinese Ceramic Society

摘　　要：对MoSi2 及其复相材料在高温、长时间老化后表面玻璃膜结构进行了研究。并用电学测试手段对表面玻璃膜的生成过程进行跟踪测试 ,以研究各复相材料表面玻璃膜的生成速度及机理。实验工作研究了MoSi2 及MoSi2 /SiC的氧化机理。氧化速度顺序为MoSi2 >MoSi2 /SiC。对于复相材料来讲 ,其玻璃膜的生成速度顺序为MS >MSM >MSA。The surface glass films of MoSi 2 and the matrix aged for a long time at high temperature were studied,and the forming process of surface glass films were traced by electric measurement method to investigate the forming velocity and mechanism of the surface glass film.The oxidation mechanism of MoSi 2 and MoSi 2/SiC were also studied .The order of oxidation velocity is MoSi 2>MoSi 2/SiC?For the matrix,the order of forming velocity for the glass film is MS>MSM>MSA.

关 键 词：表面特性 研究 MoSi2基 表面玻璃膜 复相材料 氧化 

分 类 号：TB332[一般工业技术—材料科学与工程] TQ171.73[化学工程—玻璃工业]