Precursors in the preparation of transition metal nitrides and transition metal carbonitrides and their reaction intermediates
US5023213A · kind A · utility
3Cited by
12References
9Claims
0Family size
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Key dates
| Filing date | Dec 9, 1986 |
| Grant date | Jun 11, 1991 |
| Priority date | — |
| Expiry date | Dec 9, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/80
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for making ammonolytic precursors to nitride and carbonitride ceramics. Extreme reaction conditions are not required and the precursor is a powder-like substance that produces ceramics of improved purity and morphology upon pyrolysis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.