自蔓延合成TiN-Al_2O_3复合粉体  

Preparation of TiN - A1_2O_3 Powder by SHS

作　　者：彭小艳[1] 徐协文[1] 伍协[1] 钱端芬[1] 

机构地区：[1]湖南大学材料科学与工程学院,长沙410082

出　　处：《硅酸盐通报》2004年第2期70-72,共3页Bulletin of the Chinese Ceramic Society

基　　金：中南大学粉末冶金国家重点实验室资助.

摘　　要：TiN-Al2O3是一种性能优良的复合材料,采用自蔓延的方法来合成TiN-Al2O3复合粉体,主要分析了Al2O3的不同加入量对该复合粉末合成的影响。随着Al2O3含量增加,燃烧合成温度降低,燃烧产物转化率提高,生成的TiN颗粒变粗,并且在材料中的分布不均匀。燃烧波以振荡与螺旋相结合的方式存在。TiN - Al2O3 is a composite material with excellent properties. In this paper, TiN - Al2O3 powder was prepared by SHS. The influnces of the quantities of Al2O3 on the form of TiN - Al2O3 powder were studied. With increasing the quantities of Al2O3, the combustion temperature decreased, the form rate of products increased, the sizes of TiN bacame bigger and it distributed inhomogeneous in the material. And the wave of combustion propagated with the means of oscillation and spin.

关 键 词：复合粉体材料 TIN AL2O3 自蔓延技术 温度 转化率 燃烧波 导电性能 质量分数 陶瓷 

分 类 号：TQ174.758[化学工程—陶瓷工业]