Method of producing cubic boron nitride
US6248303A · kind A · utility
5Cited by
2References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 24, 1998 |
| Grant date | Jun 19, 2001 |
| Priority date | — |
| Expiry date | Nov 24, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2203/068
- WIPO fieldMaterials, metallurgy
- 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 amides, imides and carbides of alkali metals and alkaline earth metals, as well as a silicon source and/or a boron source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.