Ceramic material for cutting tools and process for the production thereof
US4526875A · kind A · utility
9Cited by
5References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 13, 1984 |
| Grant date | Jul 2, 1985 |
| Priority date | — |
| Expiry date | Jan 13, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B35/645
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Ceramic materials for cutting tools are described, comprising molding a powder mixture comprising (a) Al.sub.2 O.sub.3, (b) TiN, and (c) at least one of ZrC, Zr, and ZrN, wherein component (a) constitutes between 25 and 80% of the total volume of the powder mixture and the volume ratio of component (c) to component (b) is 1/2 or less, and sintering the molded powder in vacuum or in an inert atmosphere. A process for production thereof is also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.