Material for making electrical contacts, process for making mate

Details Material for making electrical contacts, process for making mate Material for making electrical contacts, process for making mate

1976-08-13

1978-06-20

Hunt, Brooks H.

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

75235, 200266, B22F 300

Patent

active

040959775

ABSTRACT:
A material for use in making electrical contacts is produced in a powder form suitable for later processing into electrical contacts by standard metallurgical techniques generally involving compacting, sintering, and forming or cutting to make the desired contact size and shape. The material, and in most general applications the contact made from the material, essentially consists of silver, approximately 15% cadmium oxide by weight, and lithium oxide at a proportion of about .005 weight percent of lithium, which is approximately equal to .04 molecular percent of lithium oxide. The lithium oxide is added and uniformly distributed on the surfaces of the powder particles by precipitation.

REFERENCES:
patent: 1872065 (1932-08-01), Duffendack et al.
patent: 3930849 (1976-01-01), Krock
patent: 4011052 (1977-03-01), Davies
Bradwarow, Proceedings of Fifth International Conference on Electric Contact Phenomena, May 1970.

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