Article having a coating thereon

Details Article having a coating thereon Article having a coating thereon

1997-04-30

1999-09-14

Zimmerman, John J.

Stock material or miscellaneous articles

All metal or with adjacent metals

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

428627, 428632, 428660, 428670, 428675, 428635, B32B 1504

Patent

active

059521112

ABSTRACT:
An article is coated with a multi-layer coating comprising a nickel layer deposited on the surface of the article, a palladium layer deposited on the nickel layer, a palladium-nickel alloy layer deposited on the palladium layer, a non-precious refractory metal such as zirconium layer deposited on the palladium-nickel alloy layer, a sandwich layer comprised of alternating layers of a non-precious refractory metal compound such as zirconium nitride and a refractory metal such as zirconium deposited on the non-precious refractory metal layer, a non-precious refractory metal compound such as zirconium nitride layer deposited on the sandwich layer, and a layer comprised of a non-precious refractory metal oxide or the reaction products of a non-precious refractory metal such as zirconium, oxygen, and nitrogen deposited on the non-precious refractory metal compound layer.

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Electroplating, Frederick A. Lowenheim, pp. 210-225 (Admitted Prior Art) (1978) no month.
Modern Electroplating, Frederick A. Lowenheim, The Electrochemical Society, Inc., NY, 1942 (no month) pp. 279, 280.

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