Electrical contact material

Details Electrical contact material Electrical contact material

1977-05-31

1979-02-06

Hunt, Brooks H.

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

75235, 200260, 200265, B22F 300

Patent

active

041382510

ABSTRACT:
An electrical contact material comprising a homogeneous, pressed and sintered mixture of from 85 to 90 percent silver metal powder, from 7.5 to 14.3 percent cadmium oxide powder, and from 0.50 to 3.0 percent zinc oxide powder, by weight, and having a weight ratio of zinc oxide to cadmium oxide content in the range from 0.05 to 0.25, is shown to display remarkably improved arc erosion and welding properties.

REFERENCES:
patent: 2861155 (1958-11-01), Farnham et al.
patent: 2890315 (1959-06-01), Graves, Jr.
patent: 3489531 (1970-01-01), Schreiner et al.

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