Coated hard alloys
US4474849A · kind A · utility
13Cited by
4References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 17, 1982 |
| Grant date | Oct 2, 1984 |
| Priority date | — |
| Expiry date | Sep 17, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/26
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Coated hard alloys excellent in toughness and wear resistance comprise a substrate of hard alloy and at least one coating layer thereon, at least one of the coating layers being of amorphous alumina.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.