Coating compositions containing nickel and boron
US6066406A · kind A · utility
8Cited by
8References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 8, 1998 |
| Grant date | May 23, 2000 |
| Priority date | — |
| Expiry date | May 8, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12944
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.