Microstructure development in hot-pressed silicon carbide: Effects of aluminum, boron, and carbon additives
- LBNL Library
SiC was hot-pressed with aluminum, boron, and carbon additives. The Al content was modified either to obtain SiC samples containing a continuous Al gradient, or to vary the average Al content. In both cases, dramatic changes in microstructure, phase composition, and grain boundary structure were observed as a result of the Al variation. Similar processing and characterization were done with modified boron and carbon average contents. The systematic experiments allowed identification of the roles of Al, B, and C in developing grain morphology and phase composition. The experiments also clarified the mechanical property responses to microstructural modification. Tailoring of the SiC microstructure to suit different applications would be possible.
- Research Organization:
- Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (US)
- Sponsoring Organization:
- USDOE Director, Office of Science. Office of Basic Energy Sciences. Materials Sciences Division (US)
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 823735
- Report Number(s):
- LBNL--51914
- Journal Information:
- Acta Materialia, Journal Name: Acta Materialia Journal Issue: 13 Vol. 51; ISSN 1359-6454
- Country of Publication:
- United States
- Language:
- English
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