Method of preparing silicon nitride articles for sintering
US4462817A · kind A · utility
10Cited by
8References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 8, 1983 |
| Grant date | Jul 31, 1984 |
| Priority date | — |
| Expiry date | Jun 8, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22F2003/1046
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
In the manufacture of sintered silicon nitride articles by hot isostatic pressing, silicon nitride preforms are assembled in a stack with spacers between the preforms. The stack is completely enveloped in refractory metal foil and then encapsulated within a single capsule for the pressing operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.