Silicon nitride ceramic tools and a process for their production
US4304576A · kind A · utility
101Cited by
3References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 5, 1979 |
| Grant date | Dec 8, 1981 |
| Priority date | — |
| Expiry date | Nov 5, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T407/27
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A silicon nitride based ceramic tool is disclosed which is prepared from the starting powder compositions surrounded by and including the lines defined by the points A, B, and C and preferably D, E, and F in the FIGURE.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.