A new contact material -: Ag/SnO2-La2O3-Bi2O3

被引：0

作者：

Lu, JG ^{[1
]}

Wang, JQ ^{[1
]}

Zhao, JY ^{[1
]}

Wen, M ^{[1
]}

Wang, BZ ^{[1
]}

Wang, XH ^{[1
]}

机构：

[1] Hebei Univ Technol, Inst Elect Apparatus, Tianjin 300130, Peoples R China

来源：

RARE METALS | 2002年 / 21卷 / 04期

关键词：

contact material; silver; rare earth oxide; powder metallurgy; microstructure; additive;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A super-fine compound powder, Ag/SnO2+La2O3+ Bi2O3, has been obtained using the chemical coprecipitation method. And a new contact material, Ag/SnO2+La2O3+Bi2O3,, was produced by the powder metallurgy method. Its properties are as follows: the density is 9.75-9.93 g/cm(3) the resistivity is 2.31-2.55 muOmega (.) cm, the hardness is 880-985 MPa. Its microstructure shows that the fine oxides have a uniform distribution in the silver matrix. The results of make-break capacity and temperature rise testing show that the new material has better ability of anti-arc erosion and lower temperature rise than that of commonly used Ag/CdO.

引用

页码：289 / 293

页数：5