原位反应合成法制备TiC/Al预制块的研究  

Study on Ti C/Al Preform Prepared by XD Method

作　　者：龙春光[1] 刘厚才[1] 张厚安[1] 

机构地区：[1]湘潭工学院机械工程系,湖南湘潭411201

出　　处：《轻合金加工技术》2001年第9期44-46,共3页Light Alloy Fabrication Technology

摘　　要：通过Ｘ－ｒａｙ衍射技术和透射电镜分析方法对利用原位反应合法（即ＸＤ法），制备的不同成分配比的ＴｉＣ／Ａｌ预制块进行了研究。结果表明：Ａｌ、Ｔｉ、Ｃ粉末的配比，直接影响其烧结产物的组织成分，当Ｃ含量较高时，产物中除α（Ａｌ）和ＴｉＣ相外还含有Ａｌ４Ｃ３相；烧结产物的致密度随Ｔｉ含量的减少而增大，Ｔｉ含量高的预制块因其密度低、不利于熔铸而不适于制作复合材料。The TiC/Al preform of different proportion prepared by XD method has been studied by X-ray technique and TEM. Results showed that the proportion of Al、Ti、C powders affect the component and content of sinters directly, and when the content of carbon is high, there are some Al4C3 phases in the sinter except for the α (Al) and TiC phases; the degree of density of the sinter is becoming greater accompanying the reduction of the content of titanium. The preform of higher content of titanium is unsuitably using for composite because of lower density and disadvantage of melt.

关 键 词：TiC/Al预制块 XD法 X射线衍射技术 透射电镜分析 金属基复合材料 

分 类 号：TB331[一般工业技术—材料科学与工程]