Coating compositions containing nickel and boron

Details Coating compositions containing nickel and boron Coating compositions containing nickel and boron

1998-05-08

2000-05-23

Zimmerman, John J.

Stock material or miscellaneous articles

All metal or with adjacent metals

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

428936, 4273837, 427438, 148537, B32B 1500, C23C 1834, C23C 1850

Patent

active

060664061

ABSTRACT:
The invention is directed to corrosion and wear resistant metallic coatings containing nickel and boron. The coatings are preferably deposited on catalytically active substrates from an electroless coating bath containing nickel ions, lead tungstate as a stabilizer, a metal ion complexing agent, and a borohydride reducing agent, at a pH of about 10 to about 14. With post-coating heat treatment the coated surfaces exhibit hardness levels as high as about 2200 Knoop.

REFERENCES:
patent: 3674447 (1972-07-01), Bellis
patent: 4113248 (1978-09-01), Yanagioka
patent: 4338131 (1982-07-01), Briggs, Jr. et al.
patent: 4833041 (1989-05-01), McComas
patent: 4983428 (1991-01-01), Hodgens, II
patent: 5062797 (1991-11-01), Gonser
patent: 5213907 (1993-05-01), Caballero
patent: 5786976 (1998-07-01), Field

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