Electrical contact materials and method of manufacturing the same.

摘要

Ag-SnO-CdO electrical contact materials which are made of ternary Ag alloys consisting of more than 5-12 weight % Sn, 0.5-5 weight % Cd, and balance Ag, the alloys having been prepared by melting and having been internally-oxidized. A method of manufacturing such electrical contact materials is also disclosed, in which internal-oxidation is conducted in an oxygen atmosphere of more than 10 atm to 200 atm, at a temperature of 750 DEG C to 500 DEG C, and under conditions such that the alloys are kept in a solid phase not involving any liquid phase.