Silver-coated electric composite materials
AssigneeFurukawa Electric Co., Ltd.
InventorsShoji Shiga, Satoshi Suzuki, Nariyoshi Kiso
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Abstract
A silver-coated electric material wherein a partial or total surface of an electroconductive or non-electroconductive substrate is provided with a coating of silver or silver alloy, having the first intermediate coating layer made of Ni, Co, Cr, Pd or their alloys and the second intermediate coating layer made of Sn, Cd, Pd, Ru or their alloys between the silver coating and the surface of the substrate, and the method of preparing the same.
Claims7
An electroconductive or non-electroconductive substrate partially or totally coated with silver or a silver alloy, having between said silver or silver alloy and said substrate two intermediate coating layers which comprise (1) a first intermediate layer, as a barrier layer, adjacent to said substrate layer, consisting of at least one metal selected from the group consisting of Ni, Co, Cr, Pd and alloys thereof, having a thickness of 0.1-5 .mu.m and (2) a second intermediate layer, as an anti-oxidant layer, between said first intermediate layer and said silver or silver alloy, consisting of at least one metal selected from the group consisting of Sn, Cd, Pd, Ru or alloys thereof, having a thickness of 0.01-2 .mu.m.
Dependencies are inferred from the claim text.