Manufacturing process for sintered ceramic body for cutting tools
US4518398A · kind A · utility
17Cited by
4References
21Claims
0Family size
Inventors
Key dates
| Filing date | Jul 18, 1980 |
| Grant date | May 21, 1985 |
| Priority date | — |
| Expiry date | Jul 18, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B35/645
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A sintered ceramic body for cutting tools having a residual porosity of not exceeding 0.2% by volume and mean crystal grain size of not exceeding 2.mu. is obtained by sintering a mixture substantially consisting of 70-95% by volume alumina and the balance of titanium nitride and Zr-containing component(s) such as Zr, ZrC and/or ZrN wherein the volumetric ratio of TiN/Zr-containing component(s) ranges 95/5-50/50 under the pressure application of 50-3000 Kg/cm.sup.2. The sintering may be carried out by hot pressing or HIP process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.