Internally oxidized Ag-Sn-Bi alloy electrical contact materials

Details Internally oxidized Ag-Sn-Bi alloy electrical contact materials Internally oxidized Ag-Sn-Bi alloy electrical contact materials

1984-10-29

1985-04-30

Rutledge, L. Dewayne

Metal treatment

Stock

Noble metal base

420501, 420506, C22C 506

Patent

active

045142386

ABSTRACT:
Internally oxidized Ag-Sn-Bi alloy electrical contact materials. The alloy contains a larger amount of Bi, viz., more than 2 weight percent of bismuth, whereby the Bi which can not be a solid solution with Ag and Sn and hence precipitates as a numerous number of defects in an Ag matrix, does not allow said Ag matrix to form crystalline grains, but accelerates oxidation velocity and has solute metals oxidized extremely in minute and uniform up to inner cores of alloy mass.

REFERENCES:
patent: 4150982 (1979-04-01), Shibata

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