Method of preparation of dispersion strengthened silver...

Details Method of preparation of dispersion strengthened silver... Method of preparation of dispersion strengthened silver...

C - Chemistry, Metallurgy

22

C

31/130, 75/166,

C22C 5/06 (2006.01) C22C 1/05 (2006.01) H01H 1/0237 (2006.01)

Patent

CA 1066926

ABSTRACT Preparation of compositions of silver and CeO2 by powder metallurgy techniques overcomes problems inherent in melting silver and pure cerium and subsequently internally oxi- dizing the cerium in the mixture. Small concentrations of CeO2 substantially improve the electrical contact properties of silver. Silver with dispersed CeO2 is superior to silver alone for use as an electrical contact because of much greater resis- tance to arc erosion and welding and only slightly higher contact resistance.

260081

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