自蔓延高温燃烧合成MoSi_2  

Self - propagating high - temperature synthesis of MoSi_2

作　　者：郜剑英[1] 江莞[1] 王刚[1] 

机构地区：[1]中国科学院上海硅酸盐研究所高性能陶瓷和超微结构国家重点实验室,上海200050

出　　处：《材料科学与工艺》2005年第6期669-672,共4页Materials Science and Technology

基　　金：国家高技术研究发展计划资助项目(2001AA331040);国家自然科学基金资助项目(50372078).

摘　　要：以Mo粉和Si粉为原料,通过自蔓延高温燃烧合成(SHS)的方法成功地制备了MoSi2材料．研究了反应物原料粒度、反应物料坯相对密度、反应物预热温度、稀释剂加入量以及反应气氛对MoSi2燃烧合成的影响．并通过XRD和SEM对燃烧合成产物的物相组成和形貌进行了分析．Molybdenum disilicide was synthesized successfully from element Mo and Si powders using selfpropagating high - temperature synthesis technology. The effect of the particle size of reactants, the relative density of compact, the preheating temperature, the content of diluent and the reaction atmoslShere on the SHS process of MoSi2 was discussed based on the experimental results. The phase constituent and the morphology of the final product were inspected by X-ray diffraction （XRD） and scanning electron microscopy （SEM）, respectively.

关 键 词：MOSI2 自蔓延高温燃烧合成 燃烧温度 燃烧波传播速度 

分 类 号：TQ174[化学工程—陶瓷工业]