自蔓延高温合成 MoSi₂/Mo₅Si₃复合材料

来源期刊：中南大学学报(自然科学版)1998年第5期

论文作者：刘心宇 王德志 康伟才

文章页码：71 - 73

关键词：自蔓延;高温合成;MoSi₂;Mo₅Si₃

Key words：self propagating; high temperature synthesis; MoSi₂; Mo₅Si₃

摘    要：用初始MO粉和Si粉通过自蔓延高温合成方法(SHS)制取不同Mo₅Si₃含量的MOSi₂／Mo₅Si₃复合材料．用X射线衍射仪、扫描电镜对产物进行组织结构分析．实验结果表明，在自蔓延高温合成中，MoSi₂是一步生成，无中间相形成．随着样品中Si含量的减少，产物中Mo₅Si₃的含量增多，颗粒度变小.

Abstract: The composites of MoSi₂/Mo₅Si₃ with different contents of Mo₅Si₃ were obtained by Self propagating High temperature Synthesis(SHS) from elemental powders of Mo and Si. The products were characterized by X ray diffraction and scanning electron microscopy. The experimental results indicated that in SHS, MoSi₂ was formed in a single step and no inter phases were found in the products. With the decrease of the contents of Si in the samples, the contents of Mo₅Si₃ in the products would increase and the particle size would decrease.