Electrical contact composition for a vacuum type circuit interru

Details Electrical contact composition for a vacuum type circuit interru Electrical contact composition for a vacuum type circuit interru

1980-07-25

1983-02-08

Hunt, Brooks H.

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

75247, 428567, 200264, B22F 300

Patent

active

043727832

ABSTRACT:
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.

REFERENCES:
patent: 3357826 (1967-12-01), Honaker et al.
patent: 3818163 (1974-06-01), Robinson
patent: 3957453 (1976-05-01), Hassler et al.
patent: 4014659 (1977-03-01), Hassler et al.

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