Silicon assistant carbothermal reduction for SiC powders

被引：27

作者：

Li, Kezhi ^{[1
]}

Wei, Jian ^{[1
]}

Li, Hejun ^{[1
]}

Wang, Chuang ^{[1
]}

Jiao, Gengsheng ^{[1
]}

机构：

[1] Northwestern Polytech Univ, Natl Key Lab Thermostruct Composite Mat, Xian 710072, Peoples R China

来源：

JOURNAL OF UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING | 2008年 / 15卷 / 04期

关键词：

carbide; powders; solid state reaction; electron microscopy; X-ray diffraction;

D O I：

10.1016/S1005-8850(08)60091-2

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The silicon assistant method to increase the reaction yield of carbothermal reduction of silica at a lower temperature is reported. The effect of silicon on the carbothermal reduction process has been investigated in detail. Compared with traditional reduction, the introduction of silicon can change the reaction path and further increase the conversion of silicon carbide at a lower temperature. It is considered that the assistant reduction consists of three steps: vaporizing and melting of silicon, formation of silicon monoxide, and synthesis of silicon carbide. The morphology of the synthesized SiC powders through the silicon assistant method can be affected apparently by the experimental temperature. (c) 2008 University of Science and Technology Beijing. All rights reserved.

引用

页码：484 / 488

页数：5

共 18 条

[1] Effect of contact area on synthesis of silicon carbide through carbothermal reduction of silicon dioxide [J].