| PATENT ASSIGNEE'S COUNTRY | USA |
| UPDATE | 09.99 |
| PATENT ASSIGNEE | Allied Signal |
| PATENT CLAIMS |
- C-contg black glass ceramic compn with empirical formula SiCxOy wherein x = 0.5-2 & y = 0.5 - 3 - Reinforcement: B-contg refractory fibers having surface enriched in BN provided by nitriding fibers at 1100-1250C with gas contg 5-100% NH3 for 1-240 min |
| PATENT PHOTOCOPY | Available on request |
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