Silicon nitride/silicon carbide composite powders
Patent
·
OSTI ID:242590
Silicon nitride-silicon carbide composite powders are prepared by carbothermal reduction of crystalline silica powder, carbon powder and, optionally, crystalline silicon nitride powder. The crystalline silicon carbide portion of the composite powders has a mean number diameter less than about 700 nanometers and contains nitrogen. The composite powders may be used to prepare sintered ceramic bodies and self-reinforced silicon nitride ceramic bodies.
- Assignee:
- Dow Chemical Co., Midland, MI (United States)
- Patent Number(s):
- US 5,525,556/A/
- Application Number:
- PAN: 8-484,539
- OSTI ID:
- 242590
- Country of Publication:
- United States
- Language:
- English
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