原位合成SiCMoSi2复合材料的研究.pdf

下半月出版 MaterialHeatTreatmentl材料热处理技术 原位合成SiC／MoSi2复合材料的研究 刘利平1。张循良1，席俊杰2 (1．郑州大学化工与能源学院，河南郑州450001；2．郑州航空工业管理学院机电工程学院，河南郑州450015) 摘要：以Mo、Si、C原始粉末为原料．进行机械球磨混合制备混合粉，然后进行原位反应热压烧结制备SiC／MoSi2 复合材料。利用X射线衍射仪、扫描电镜对试样进行物相和显微组织观察。并对原位反应机制进行了探讨。结果表明， 等中间相．得到的颗粒细小、相分布均匀以及相组成为SiC与MoSi2的SiC-40v01％／MoSi2复合材料。 关键词：SiC／MoSi2；复合材料；原位反应；热压烧结；原位反应 中图分类号：TB332 文献标识码：A 文章编号：lOGl．3814(2011)14．0089．04 on IIl-situ StudySiC／MoSizCompositePreparedby Synthesis LIU Liping‘，ZHANGXunlian91，XIJunjie2 and 450001，China；2．SchoolofMechatronics (1．Schoolo／ChemicalEnergyEngineering,ZhengzhouUnivers趣，，，2kn眵IIl0H Institute Engineering,刁AengzhouofAeronauticalIndustryManagement，Zhengzhou450015，China) was in-situreaction andCasmixture Abstract：SiC／MoSi2 by Mo，Si compositeprepared hot-pressingsintering，using mixture was mechanical andmicrostructum composition powder．Thepowderpreparedby milling-mixingprocess．Thephase XRD reactionmechanismwasdiscussed．Themsultsshowthatthe ofthetest WeIe andSEM．Thein-situ samplesanalyzedby mechanicaldoesnot inthe andCmixture thecondition alloying appearMo，Si powder．Under withuniformdistributionofSiCand was and Carlberemoved． MosSi3C composite MoSi2prcpareA interphase reactionmechanism Keywords：SiC／MoSi2；composite；in—situreaction；hot-presssintering；in-situ