| 摘要 |
A vacuum type circuit interrupter contact comprises a principal phase material selected from the group consisting of copper and solid solutions of chromium copper, iron copper and cobalt copper, and a second phase material selected from the group consisting of chromium, iron and cobalt. The second phase material is dispersed into the principal phase material and has a particle diameter in the range of 74 mu m to 250 mu m. The contact can be formed by powder metallurgy, an infiltration process or a fusion process. |
