Method for producing cubic boron nitride
US5618509A · kind A · utility
18Cited by
4References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 7, 1995 |
| Grant date | Apr 8, 1997 |
| Priority date | — |
| Expiry date | Jun 7, 2015 |
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 a mixture of at least two compounds selected from amides and imides of Li, Ca and Mg, or in its copresence with at least one metal selected from elements of Groups Ia, IIa, IIIa, VIa, VIIa, VIII, IIb and IIIb.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.