Composite silver base electrical contact material

Details Composite silver base electrical contact material Composite silver base electrical contact material

1989-01-23

1989-10-17

Lechert, Jr., Stephen J.

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

419 21, 419 23, 419 30, 419 31, 419 49, 252513, 252514, 252518, 252519, 22C 2912, C22C 2912

Patent

active

048744301

ABSTRACT:
A silver base electrical contact material is described which contains a dispersion of particles consisting of cadmium oxide and nickel. The nickel particles are surrounded by a continuous adherent coating of nickel oxide which eliminates the detrimental reaction which would otherwise occur between nickel and cadmium oxide. The invention contact materials have improved lives and are fabricated by any one of several different powder metallurgy techniques.

REFERENCES:
patent: 4141727 (1979-02-01), Shida et al.
patent: 4204863 (1980-05-01), Schreiner
patent: 4622269 (1986-11-01), Leung et al.
patent: 4764227 (1988-08-01), Rothkegel et al.
patent: 4810289 (1989-03-01), Hoyer et al.

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