硅酸盐学报2011，Vol.39Issue(2)：177-181,5.
自蔓延高温合成制备单相氮化硅镁粉体
Preparation of Single-Phase Magnesium Silicon Nitride Powder by Self-Propagation High-Temperature Synthesis
摘要
Abstract
Single-phase magnesium silicon nitride (MgSiN2) powder was prepared by a two-step process: self-propagation high-temperature synthesis followed by acid washing. The effects of starting material compositions, addition of MgSiN2 used as diluent and N2 pressure on the phase compositions of the final products were studied, and the action of acid washing process was also discussed. It is difficult to synthesize single-phase MgSiN2 by one-stage combustion reaction using the stoichiometric content of starting materials through regulating the process parameters. The combustion synthesis of MgSiN2 by using an excess of magnesium in the starting materials and then acid washing off the impurity is an effective way to prepare the single-phase MgSiN2 powder.关键词
自蔓延高温合成/氮化硅镁/稀释剂Key words
self-propagation high-temperature synthesis/ magnesium silicon aitride/ diluent分类
化学化工引用本文复制引用
杨建辉,陈义祥,刘光华,李江涛..自蔓延高温合成制备单相氮化硅镁粉体[J].硅酸盐学报,2011,39(2):177-181,5.基金项目
国家自然科学基金(50772116及50932006)资助项目. （50772116及50932006）
