Article having a decorative and protective coating

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

1997-04-30

1999-07-13

Thibodeau, Paul

Stock material or miscellaneous articles

All metal or with adjacent metals

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

428627, 428628, 428629, 428632, 428635, 428660, 428661, 428680, B21D 3900

Patent

active

059224789

ABSTRACT:
An article is coated with a multi-layer coating comprising a nickel layer, a chrome layer, a refractory metal layer, preferably zirconium layer, a sandwich layer comprised of a plurality of alternating layers of a refractory metal compound and a refractory metal compound layer, preferably zirconium nitride layer, and a refractory metal oxide layer or a layer comprised of the reaction products of refractory metal, oxygen and nitrogen. The coating provides the color of polished brass to the article and also provides abrasion protection, corrosion protection, and improved acid resistance.

REFERENCES:
patent: 4507189 (1985-03-01), Doi et al.
patent: 5413874 (1995-05-01), Moysan, III et al.
patent: 5626972 (1997-05-01), Moysan, III et al.

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