Hybrid Ti_2AlC Bonded Diamond Composites Prepared by a Self-propagation Sintering Approach

作     者：ZHANG Wangxi LIANG Baoyan LUO Wei WANG Yanzhi 张旺玺;LIANG Baoyan;LUO Wei;WANG Yanzhi

作者机构：School of Materials and Chemical Engineering Zhongyuan University of Technology Department of Chemical Engineering Sichuan Vocational College of Chemical Technology 

出 版 物：《Journal of Wuhan University of Technology(Materials Science)》 (武汉理工大学学报（材料科学英文版）)

年 卷 期：2019年第34卷第1期

页      面：82-85页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：Funded by National Natural Science Foundation of China(Nos.51602356 and 11472316) the University Innovation Team Project in Henan Province(Nos.15IRTSTHN004,16A430049,17A430034,and 18A430035) Henan Innovative Excellent Scientific and Technological Team(No.CXTD2013048) 

主　　题：titanium aluminum carbide diamond content size self-propagation high temperature sintering 

摘      要：Ti, Al, graphite and diamond powders were used as raw materials to prepare Ti_2AlC matrixbonded diamond composite using self-propagating high-temperature synthesis(SHS) method. The effect of diamond size and content on the fabrication of Ti_2AlC-bonded diamond material was investigated. Results showed that Ti_2AlC matrix-bonded diamond composites could be obtained by SHS. The phase composition and microstructure of the Ti_2AlC-bonded diamond material were influenced by the diamond content and size. When the diamond(93 μm) additive amounts were 10% and 20%, the product phases included Ti_2AlC, TiC and Al_3Ti. However, excess Ti and Al persisted in the sample that contained 30% diamond. Diamond bonded well with the matrix in the sample that contained 10% diamond. Moreover, addition of coarse diamond particles with sizes of 93 and 125 μm produced a mainly Ti_2AlC matrix. However, diamond adequately reacted with Ti to form TiC when finer diamond particles(5 and 10 μm) were used.