Article having a decorative and protective multilayer coating

Details Article having a decorative and protective multilayer coating Article having a decorative and protective multilayer coating

1997-03-10

1998-09-29

Zimmerman, John J.

Stock material or miscellaneous articles

All metal or with adjacent metals

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

428628, 428660, 428675, 428670, B32B 1504, B32B 1520

Patent

active

058144153

ABSTRACT:
An article is coated with a multilayer coating comprising a nickel layer deposited on the surface of the article, a palladium strike layer deposited on the nickel layer, a palladium
ickel alloy layer deposited on the palladium strike layer, a refractory metal, preferably zirconium, strike layer deposited on the palladium
ickel alloy layer, and a refractory metal compound, preferably zirconium nitride, deposited on the refractory metal strike layer. The coating provides the color of polished brass to the article and also provides abrasion and corrosion protection.

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Frederick Lowenheim, Modern Electroplating, Second Edition, The Electrochemical Society, NY, pp. 279-280, Dec. 1942.

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