High-density high-conductivity electrical contact material for v

Details High-density high-conductivity electrical contact material for v High-density high-conductivity electrical contact material for v

1978-04-13

1980-02-26

Martin, Jr., William D.

Electricity: circuit makers and breakers

Liquid contact

Time delay

75200, 428567, H01H 3366

Patent

active

041907531

ABSTRACT:
A vacuum interrupter contact is formed of copper and chromium which exhibits high electrical conductivity and a high density of greater than about 95% of the theoretical density of the materials. The copper is the predominant constituent, and a mixture of copper and chromium powder is cold-pressed to form a compact which is then vacuum-sintered at a temperature below the melting point of the copper to achieve the desired high density.

REFERENCES:
patent: 2362007 (1944-11-01), Hensel et al.
patent: 2758229 (1956-08-01), Perry
patent: 3818163 (1974-06-01), Robinson
patent: 3960554 (1976-06-01), Gainer, Jr.
patent: 4032301 (1977-06-01), Hassler et al.

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