Hard and low friction nitride coatings and methods for forming the same
US7211323B2 · kind B2 · utility
9Cited by
5References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 6, 2003 |
| Grant date | May 1, 2007 |
| Priority date | — |
| Expiry date | Jan 6, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/25
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
An improved coating material possessing super-hard and low friction properties and a method for forming the same. The improved coating material includes the use of a noble metal or soft metal homogeneously distributed within a hard nitride material. The addition of small amounts of such metals into nitrides such as molybdenum nitride, titanium nitride, and chromium nitride results in as much as increasing of the hardness of the material as well as decreasing the friction coefficient and increasing the oxidation resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.