Study on improving the dimensional stability of W-Cu composites at high temperature

被引：0

作者：

Kuang, YG ^{[1
]}

Mo, KQ ^{[1
]}

Xu, GL ^{[1
]}

Wei, AB ^{[1
]}

机构：

[1] Cent Iron & Steel Res Inst, Beijing 100081, Peoples R China

来源：

RARE METAL MATERIALS AND ENGINEERING | 1997年 / 26卷 / 05期

关键词：

W-Cu composites; rocket nozzle; shrinkage;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A new type of rocket nozzle made of W-Cu composite was found to have contracted after a launching test. The microstructure, fractography, composition fabrication procedure and mechanical properties of W-Cu have been analyzed. The cause of shrinkage of nozzle diameter has been found to be: (a) the second sintering shrinkage of the W-skeleton in the W-Cu composite, (b) the extension of the nozzle in the axial direction because of the poor strength of W-Cu composite at high temperatures during launching test. Advanced ways to improve the dimensional stability of W-Cu products at high temperature were suggested and have been demonstrated in further.

引用

页码：30 / 34

页数：5