Silver-iron material for electrical switching contacts (I)

Details Silver-iron material for electrical switching contacts (I) Silver-iron material for electrical switching contacts (I)

1996-11-19

1998-11-24

Mai, Ngoclan

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

75235, 75247, 75252, 252513, 252514, 419 21, 419 28, 419 42, C22C 506

Patent

active

058410449

ABSTRACT:
Silver-iron materials for electrical switching contacts with properties which come very close to those of silver-nickel materials formed of 0.5 to 4.5% by weight iron and 0.05 to 2% by weight of one or more of the oxides magnesium oxide, calcium oxide, yttrium oxide, lanthanum oxide, titanium oxide, zirconium oxide, hafnium oxide, cerium oxide, niobium oxide, tantalum oxide, chromium oxide, manganese oxide, iron oxide, zinc oxide, aluminum oxide, indium oxide, silicon oxide, and tin oxide, the balance being silver.

REFERENCES:
patent: 3951872 (1976-04-01), Neely
patent: 4204863 (1980-05-01), Schreiner
patent: 4256489 (1981-03-01), Van Wyk
patent: 4859238 (1989-08-01), Weise et al.
patent: 4954170 (1990-09-01), Fey et al.
patent: 5246480 (1993-09-01), Haufe et al.
Patent Abstracts of Japan vol. 18, No. 377 (C-1225), 15 Jul. 1994 & JP06100965 12 Apr. 1994.
Patent Abstracts of Japan vol. 18, No. 377 (C-1225), 15 Jul. 1994 & JP06100963 12 Apr. 1994.

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