Method of preparation of dispersion strengthened silver electric

Details Method of preparation of dispersion strengthened silver electric Method of preparation of dispersion strengthened silver electric

1975-09-05

1977-04-19

Stallard, W.

Metal treatment

Compositions

Heat treating

294205, 75173A, 252514, H01B 102, C22C 105, C22C 510

Patent

active

040186300

ABSTRACT:
Preparation of compositions of silver and CeO.sub.2 by powder metallurgy techniques overcomes problems inherent in melting silver and pure cerium and subsequently internally oxidizing the cerium in the mixture. Small concentrations of CeO.sub.2 substantially improve the electrical contact properties of silver. Silver with dispersed CeO.sub.2 is superior to silver alone for use as an electrical contact because of much greater resistance to arc erosion and welding and only slightly higher contact resistance.

REFERENCES:
patent: 2005645 (1935-06-01), Bond et al.
patent: 3501287 (1970-03-01), Lever

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