Mo-Si-C三元体系复合材料的示差扫描量热法研究  

Research on Mo-Si-C ternary system composites by use of DSC method

作　　者：席俊杰[1] 吴中[1] 张纯亮[2] 

机构地区：[1]郑州航空工业管理学院机电工程学院,河南郑州450015 [2]防空兵指挥学院基础部,河南郑州450052

出　　处：《金属热处理》2008年第9期50-52,共3页Heat Treatment of Metals

基　　金：河南省高校杰出科研人才创新工程项目(2007KYCX0014)

摘　　要：采用示差扫描量热法(DSC)研究了Mo-Si-C三元体系复合材料加热时的反应过程及反应速率、相的形成规律等问题。结果表明,利用Mo、Si和C混合粉末可以制备出SiC/MoSi2两相复合材料;随着升温速率的提高,过渡相的生成量减少;Mo、Si、C混合粉末在加热过程中,温度从低到高依次形成的过渡相为Mo2C-Mo3Si-Mo5Si3-MoSi2-SiC。The reaction process, reaction velocity and phase transforming mechanism of Mo-Si-C ternary system composite during heating were studied with differential scanning calorimetry （DSC）. The results show that two phases composite of SiC/MoSi2 can be synthesized by Mo, Si and C mixture powders, the quantity of synthesized transition phases reduces with the rising of heating-rate, and during the heating process for Mo, Si and C mixture powders, the phases form in an order of MOEC,Mo3Si,Mo5Si3 ,MoSi2 and SiC along with temperature from low to high.

关 键 词：SIC/MOSI2复合材料 Mo-Si-C三元体系 示差扫描量热法 

分 类 号：TB331[一般工业技术—材料科学与工程] TG115.2[金属学及工艺—物理冶金]