Material for low voltage current contacts

Details Material for low voltage current contacts Material for low voltage current contacts

1984-12-06

1986-04-01

Brody, Christopher W.

Stock material or miscellaneous articles

All metal or with adjacent metals

Composite; i.e., plural, adjacent, spatially distinct metal...

928929, 470463, 470580, 470589, 200266, 339278C, C22C 3000

Patent

active

045797870

ABSTRACT:
Low voltage current contacts should have good tarnish resistance and resistance to wear at the smallest possible gold content. Such materials consist of 330 to 50 wt. % palladium, 18 to 48 wt. % silver, 19 to 33 wt. % gold, 0.01 to 1 wt. % iridium, osmium, or a mixture of iridium and osmium and either 0.5 to 5 wt. % lead or a mixture of 0.5 to 3 wt. % lead and 0.1 to 3 wt. % tin.

REFERENCES:
patent: 1248621 (1917-12-01), Cooper
patent: 2154068 (1939-04-01), Ellis
patent: 2241262 (1941-05-01), Keitel
patent: 2300286 (1943-10-01), Gwyn, Jr.
patent: 2418710 (1947-04-01), Hensel
patent: 3981724 (1976-09-01), Prasad
patent: 4069370 (1978-01-01), Harmsen et al.
Russell R. J. "Properties of Inlay Clad Brought Gold Alloys" Solid State Technology Aug., 1976 pp. 39-48.

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