Ag-SnO.sub.2 electrical contact materials

Details Ag-SnO.sub.2 electrical contact materials Ag-SnO.sub.2 electrical contact materials

1991-07-05

1992-09-15

Roy, Upendra

Metal treatment

Stock

Noble metal base

428929, 428614, 420501, C22C 500

Patent

active

051477289

ABSTRACT:
Novel Ag-SnO electrical contact materials are disclosed, which are made of Ag alloys consisting of 5-20 weight % of Sn and a balance of Ag, the alloys having been prepared by melting and having been internal oxidized. Novel manufacturing methods are also disclosed, in which internal-oxidation is conducted in an oxygen atmosphere of 10 atm to 200 atm, and at a temperature of 750.degree. C. to 500.degree. C.

REFERENCES:
patent: 4412971 (1983-11-01), Shibata
patent: 4452652 (1984-06-01), Shibata
patent: 4457787 (1984-07-01), Shibata
patent: 4981533 (1991-01-01), Yida

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