Multilayer nitride hard coatings
US10570501B2 · kind B2 · utility
1Cited by
42References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 31, 2017 |
| Grant date | Feb 25, 2020 |
| Priority date | — |
| Expiry date | Dec 29, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23C2228/08
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
In one aspect, coatings are described herein employing composite architectures providing high aluminum content and high hardness for various cutting applications. For example, a coated cutting tool comprises a substrate and a coating comprising a refractory layer deposited by physical vapor deposition adhered to the substrate, the refractory layer comprising a plurality of sublayer groups, a sublayer group comprising a titanium aluminum nitride sublayer and an adjacent composite sublayer comprising alternating nanolayers of titanium silicon nitride and titanium aluminum nitride.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.