Method of internally oxidizing Ag-Sn alloy contact material

Details Method of internally oxidizing Ag-Sn alloy contact material Method of internally oxidizing Ag-Sn alloy contact material

1982-05-20

1984-09-18

Rutledge, L. Dewayne

Metal treatment

Compositions

Heat treating

148431, C21D 178

Patent

active

044722117

ABSTRACT:
Rather high temperature raise of internally oxidized Ag-Sn alloy contact materials due to a high contact resistance inherent to such materials, is eliminated. The high contact resistance which is caused by high concentration or supersaturation of metal oxides including tin oxides about contact surfaces, is avoided by having solute metals sublimated, reduced or extracted about the contact surface before the internal oxidation thereof. Sublimation and other treatments may be made after having the materials subjected to internal oxidation.

REFERENCES:
patent: 4246321 (1981-01-01), Shibata

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