XD法合成TiC/Al复合材料的机制  

MECHANISM OF TiC/Al COMPOSITE SYNTHESIS WITH XD METHOD

作　　者：姜文辉[1] C.BADINI 

机构地区：[1]沈阳工业大学 [2]都灵工业大学

出　　处：《复合材料学报》1998年第1期52-55,共4页Acta Materiae Compositae Sinica

摘　　要：本文研究了ＸＤ法合成ＴｉＣ／Ａｌ复合材料的机理。结果表明：在铝基体中，首先形成Ａｌ３Ｔｉ相，然后，Ａｌ３Ｔｉ相与Ｃ粉发生反应，生成ＴｉＣ增强相。分析认为：Ａｌ在ＴｉＣ相形成过程中起触媒作用，降低激活能，加速反应进行。The mechanism of in situ TiC/Al composite synthesis with XD method was studied by using DTA, X ray diffraction, TEM and optical microscopy. The results show that Al 3Ti phase forms firstly in aluminium matrix and then TiC phase is synthesized through the reaction between Al 3Ti phase and C powder. It is thought that Al acts as a catalyst during TiC formation, lowering activation energy and favoring the reaction.

关 键 词：XD法 复合材料 碳化钛 铝基 金属基复合材料 

分 类 号：TB333[一般工业技术—材料科学与工程]