Pyrolytic boron nitride with columnar crystalline morphology
US5004708A · kind A · utility
3Cited by
1References
19Claims
0Family size
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Key dates
| Filing date | Mar 2, 1989 |
| Grant date | Apr 2, 1991 |
| Priority date | — |
| Expiry date | Mar 2, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23C16/342
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A pyrolytic boron nitride with a highly oriented crystalline morphology of twinned boron nitride crystallites is produced by addition of a trace amount of zirconium into the boron nitride.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.