Effect of dilution and porosity on self-propagating high-temperature synthesis of silicon nitride

被引:42
作者
Cano, IG [1 ]
Borovinskaya, IP [1 ]
Rodriguez, MA [1 ]
Grachev, VV [1 ]
机构
[1] CSIC, Inst Ceram & Vidrio, Madrid 28500, Spain
关键词
Self-propagating high-temperature synthesis (SHS);
D O I
10.1111/j.1151-2916.2002.tb00436.x
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Self-propagating high-temperature synthesis is a very easy and low-cost method to synthesize Si3N4. The nitriding of silicon powder takes place in a self-sustained regime under high pressures of nitrogen with dilution of silicon by Si3N4. In this work effects of dilution and green-mixture porosity on combustion velocity and phase content of reaction products are studied. Results are compared with previous work of other authors and different behaviors are found. An explanation of these behaviors is given.
引用
收藏
页码:2209 / 2211
页数:3
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