Application of microwave heating for fabrication of silicon nitride ceramics
Conference
·
OSTI ID:10125227
Microwave processing of silicon nitride-based ceramics was examined to identify aspects that would have advantages over conventional heating such as improved fabrication parameters or increased mechanical properties. Areas of microwave processing examined were sintering of powder compacts and sintering of reaction-bonded silicon nitride. The sintering of powder compacts showed improved densification and enhanced grain growth. However, the high additive levels required to produce crack-free parts generally limit these materials to low temperature applications. Sintered reaction-bonded silicon nitride materials were fabricated in the microwave with a one-step process using cost-effective raw materials. The materials had properties appropriate for structural applications.
- Research Organization:
- Oak Ridge National Lab., TN (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 10125227
- Report Number(s):
- CONF-930164--7; ON: DE93006741
- Country of Publication:
- United States
- Language:
- English
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