Layered coating and method for forming the same
US8092922B2 · kind B2 · utility
4Cited by
11References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2008 |
| Grant date | Jan 10, 2012 |
| Priority date | — |
| Expiry date | Feb 8, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31678
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A layered coating is disclosed herein. The layered coating includes a chromium layer, an intermediate layer of chromium and nitrogen established on the chromium layer, and an outer layer of chromium and nitrogen established on the intermediate layer. The intermediate layer has a gradually changing composition, wherein the chromium concentration decreases from an area of the intermediate layer adjacent the chromium layer towards a surface of the layered coating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.