催化氮化制备氮化硅粉体  

Catalytic Nitridation Preparation of Silicon Nitride Powders

作　　者：赵万国 古亚军[1] 李发亮[1] 王军凯[1] 张海军[1] 张少伟[1] 

机构地区：[1]武汉科技大学省部共建耐火材料与冶金国家重点实验室,武汉430081

出　　处：《硅酸盐通报》2016年第4期1106-1113,1143,共9页Bulletin of the Chinese Ceramic Society

基　　金：国家自然科学基金面上项目(51472184;51472185);湖北省自然科学基金重点项目(2013CFA086);湖北省科技支撑计划对外科技合作项目(2013BHE002)资助;973计划前期研究专项(2014CB660802)

摘　　要：氮化硅陶瓷由于具有优良的机械性能、化学性能和物理性能而被广泛应用于化工、冶金及航天等领域。催化氮化法制备氮化硅可以有效避免"硅芯"及"流硅"等不完全氮化形为的发生;并促进氮化硅晶须的原位反应合成,改善氮化硅基材料界面的显微结构,提高最终制品的力学性能。本文综述了金属及金属氧化物催化剂催化氮化反应生成氮化硅的最新进展及一维氮化硅的原位生成机理,并在此基础上展望了催化氮化制备氮化硅工艺今后的发展方向。Silicon nitride ceramics which possess excellent mechanical properties,chemical properties and physical properties have been widely used in chemical industry,metallurgy,aerospace and other fields.Catalytic nitridation method can effectively lower the nitridation temperature and enhance the conversion rate of Si powders. At the same time,it also can promote the in-situ formation of 1-dimensional silicon nitride which could increase the mechanical properties of the final silicon nitride products. This article reviews the effect of metal and metal oxide catalysts on the catalytic nitridation of silicon powders and the in situ formation mechanism of the 1-dimensional nitride silicon. At last,the future research direction on preparation of silicon nitride via the catalytic nitridation method is also pointed out.

关 键 词：氮化硅 一维纳米材料 催化氮化 反应机理 

分 类 号：TQ175[化学工程—硅酸盐工业]