Self-propagating high-temperature synthesis and reaction mechanism in Ti-W-C system

被引：0

作者：

Li, Jinfeng

Zheng, Ziqiao

He, Guoxin

Tao, Xiaofeng

Zhang, Zhao

机构：

来源：

Fenmo Yejin Jishu/Powder Metallurgy Technology | 2000年 / 18卷 / 02期

关键词：

Chemical reactions - Combustion - Synthesis (chemical);

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The effects of W content, Ti powder size and preheating temperature on combustion temperature and combustion velocity in self-propagating high-temperature synthesis (SHS) of Ti-W-C system were investigated. The phase components of SHS were examined. The reaction mechanism was studied. Uniphase (W, Ti)C can be synthesized without being preheated in the condition of W/(Ti+W)&le0.3. Preheating mixtures can accelerate the formation of (W, Ti)C. There are two reaction mechanisms in SHS reaction process, including solution-precipitation and diffusion-solution in solid state.

引用

页码：83 / 87