Electrical contact material

Details Electrical contact material Electrical contact material

1974-05-29

1976-01-20

Rutledge, L. Dewayne

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

B32B 1500

Patent

active

039334856

ABSTRACT:
An alloy for composite electrical contact materials which is composed of 5 to 10 weight percent of tin and 1.0 to 6 weight percent of indium, the balance being silver, said alloy being subjected to an internal oxidation. The alloy may contain, when added by one or more other solute metal elements selected from zinc, antimony, lead and bismuth, as much as 6 to 15 weight percent of tin and said other solute metal elements in total in which the latter are less than 30 percent of the former. The alloy may also comprise up to 0.5 weight percent of ferrous or alkali earth metals.

REFERENCES:
patent: 2486341 (1949-10-01), Stumbock
patent: 2572662 (1951-10-01), Richardson et al.
patent: 2796346 (1957-06-01), Stumbock
patent: 3472654 (1969-10-01), Comey et al.
patent: 3607244 (1971-09-01), Kabayama
patent: 3694197 (1972-09-01), Zdanuk et al.

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