Hard, wear-resistant aluminum nitride based coating
US7704611B2 · kind B2 · utility
8Cited by
2References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 18, 2005 |
| Grant date | Apr 27, 2010 |
| Priority date | — |
| Expiry date | Apr 11, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31678
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A hard, wear-resistant aluminum nitride based coating of composition AlxSiyMezN is proposed; x, y and z denote atomic fractions, the sum of which is between 0.95 and 1.05, and wherein Me is a metal dopant of group III to VIII and Ib transition metals or a combination thereof. The metal provides, during the coating process, an intrinsic electrical conductivity higher than the coating without the metal doping. The silicon content is in between 0.01≦y≦0.4 and the content of the metal dopant or dopants Me is 0.001≦z≦0.8, preferably 0.01≦z≦0.05 and most preferably 0.015≦z≦0.045.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.