微波诱发自蔓延高温反应合成Ti_2SnC材料  

Fabrication of Ti_2SnC materials by microwave induced self-propagation high temperature synthesis

作　　者：梁宝岩[1] 张旺玺[1] 王艳芝[1] 闫帅帅[1] 王俊和[1] 

机构地区：[1]中原工学院材料与化工学院,郑州450007

出　　处：《粉末冶金材料科学与工程》2016年第5期685-689,共5页Materials Science and Engineering of Powder Metallurgy

基　　金：郑州市国际科技合作与交流项目(153PGJHZ209);河南省高等学校重点科研项目(17A430034);河南省高校创新团队项目(15IRTSTHN004);河南省省院科技合作项目(142106000193);河南省教育厅自然科学研究计划项目资助(14A430007);河南省科技开放合作项目(142106000051);郑州市人才引育项目(141PRCYY514)

摘　　要：以Ti,Sn和C粉末为原料,通过微波诱发SHS反应制备Ti2SnC材料。研究结果表明,采用活性炭为C源,会发生自蔓延高温反应,反应后得到Ti2SnC为主相的材料,同时含有一定量的TiO2,Sn,TiC和Ti6Sn5相。样品的表面由大量钛锡氧化物的柱状和针状晶粒构成。柱状晶粒长约12-18μm,宽度约为1-4μm。针状晶粒长约1-4μm,宽度约为0.2μm。试样的内部主要为颗粒状钛锡化合物与碳化钛晶粒,以及片状Ti2SnC晶粒。采用碳黑为C源,更易于促进Ti2SnC材料的合成。Ti2SnC was synthesized by microwave induced self-propagation high temperature synthesis（SHS） using Ti, Sn and C powders as raw materials. The research results show that SHS reaction occurs by using activate carbon as C source, and the main phase of the product is Ti2SnC. In addition, TiO2, Sn, Ti C and Ti6Sn5 are also obtained. The surface organization of the product composes of amounts of column and needlelike Ti-Sn oxide. The column grains have a length of 12-18 μm and a width of 1-4 μm. The needlelike grains have a length of 1-4 μm and a diameter of 0.2 μm. The inner of the product mainly composes of Ti-Sn complex particles, Ti C grains and lathed Ti2SnC grains. Ti2SnC can be more easily synthesized by using carbon black as carbon source.

关 键 词：Ti2SnC 微波合成 自蔓延高温合成反应 活性碳 碳黑 

分 类 号：TM286[一般工业技术—材料科学与工程]