Article having a decorative and protective multi-layer coating

Stock material or miscellaneous articles – All metal or with adjacent metals – Composite; i.e. – plural – adjacent – spatially distinct metal...

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Details

428627, 428628, 428629, 428635, 428648, 428660, 428675, 428680, B21D 3900

Patent

active

059897309

ABSTRACT:
An article is coated with a multi-layer coating comprising a nickel layer, a tin-nickel alloy layer, a non-precious refractory metal layer, a sandwich layer comprised of a plurality of alternating layers of non-precious refractory metal compound and of a non-precious refractory metal, a non-precious refractory metal compound layer, and a layer comprised of a non-precious refractory metal oxide or the reaction products of a non-precious refractory metal, oxygen and nitrogen.

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