Silicon nitride ceramic having high fatigue life and high toughness
Patent
·
OSTI ID:870557
- Oakham, MA
A sintered silicon nitride ceramic comprising between about 0.6 mol % and about 3.2 mol % rare earth as rare earth oxide, and between about 85 w/o and about 95 w/o beta silicon nitride grains, wherein at least about 20% of the beta silicon nitride grains have a thickness of greater than about 1 micron.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- DOE Contract Number:
- AC05-84OR21400
- Assignee:
- Saint-Gobain/Norton Industrial Ceramics Corp. (Worcester, MA)
- Patent Number(s):
- US 5545597
- OSTI ID:
- 870557
- Country of Publication:
- United States
- Language:
- English
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