Alloy coatings for electrical contacts

Details Alloy coatings for electrical contacts Alloy coatings for electrical contacts

1988-04-29

1989-07-18

Kaplan, G. L.

Stock material or miscellaneous articles

All metal or with adjacent metals

Composite; i.e., plural, adjacent, spatially distinct metal...

200266, 204 446, 361397, 428680, 439887, H01H 100

Patent

active

048493031

ABSTRACT:
A plating bath and process for electroplating coatings of palladium nickel alloys on a conductive substrate at current densities in the range of 10 amps/sq. ft. to 150 amps/sq. ft. wherein the palladium content of the alloy remains substantially constant despite current density variations during plating. The alloy composition stability is achieved by adding at least about 15 parts per million of iodide and/or iodate ions to the plating bath. The as-plated alloy has a thin surface layer which contains iodide at or near the surface.

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