Boron-containing, silicon nitride-based ceramic shaped body
US5128286A · kind A · utility
16Cited by
15References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 18, 1990 |
| Grant date | Jul 7, 1992 |
| Priority date | — |
| Expiry date | Jun 18, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G77/60
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A shaped body is disclosed which comprises substantially amorphous, silicon nitride-based ceramic containing Si, N and B as essential components and O, C and H as optional components in amounts providing the following atomic ratios: PA1 N/Si: 0.05 to 2.5, PA1 B/Si: 0.01-3, PA1 O/Si: 2.0 or less, PA1 C/Si: 1.5 or less, and PA1 H/Si: 0.1 or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.