Internal oxidized ag-sno system alloy electrical contact...

Details Internal oxidized ag-sno system alloy electrical contact... Internal oxidized ag-sno system alloy electrical contact...

C - Chemistry, Metallurgy

22

C

31/170, 148/24

C22C 1/10 (2006.01) C22C 5/10 (2006.01) H01H 1/02 (2006.01) H01H 1/023 (2006.01)

Patent

CA 1296883

Abstract of the Disclosure Electrical contact materials made from an internally oxidized Ag alloy containing 0.5 to 12 weight % of Sn. Internal oxidized structures which have been produced in the alloy at the forwardmost area along a progressive direction of internal oxidation and which are fine and free from the segregation of tin oxides, are employed as contact surfaces. Another surface opposite to said contact surfaces may be brazeable by having it subjected to a reduction or decompo- sition treatment of metal oxides about said another surface. As an embodiment, the alloy is internal oxidized by having it sandwiched between pure silver thin layers, and is cut horizontally right in two, simultaneously removing the dep- letion layer from the internally oxidized alloy.

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