Method of making Ag-SnO contact materials by high pressure inter

Details Method of making Ag-SnO contact materials by high pressure inter Method of making Ag-SnO contact materials by high pressure inter

1990-02-08

1992-01-07

Roy, Upendra

Metal treatment

Compositions

Heat treating

148431, 420501, 428673, C21D 178

Patent

active

050788108

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: 3933486 (1976-01-01), Shibata
patent: 4050930 (1977-09-01), Motoyoshi et al.
patent: 4161403 (1979-07-01), Shibata
patent: 4457787 (1984-07-01), Shibata
patent: 4472211 (1984-09-01), Shibata

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