Method for producing cubic boron nitride
US5837214A · kind A · utility
7Cited by
1References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 21, 1997 |
| Grant date | Nov 17, 1998 |
| Priority date | — |
| Expiry date | May 21, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC30B29/38
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
hBN is converted to cBN by keeping it under temperature and pressure conditions within the range of stability of cubic boron nitride, in the presence of at least one compound selected from carbides of alkali metals and alkaline earth metals, or in the presence both of at least one compound selected from carbides of alkali metals and alkaline earth metals and of at least one compound selected from amides and imides of alkali metals and alkaline earth metals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.