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Effect of hot isostatic pressing on the properties of sintered alpha silicon carbideTwo lots of alpha silicon carbide were isostatically hot-pressed under 138 MPa for 2 h in Ar at temperatures up to 2200 C. Nearly theoretically dense specimens resulted. Hot isostatic pressing increased both room-temperature strength and 1200 C strength, and resulted in improved reliability. One lot of material which was pressed at 2200 C showed increases of about 20 percent in room-temperature strength and about 50 percent in 1200 C flexural strength; the Weibull modulus improved about 100 percent.
Document ID
19850066606
Document Type
Reprint (Version printed in journal)
Authors
Watson, G. K. (NASA Lewis Research Center Cleveland, OH, United States)
Moore, T. J. (NASA Lewis Research Center Cleveland, OH, United States)
Millard, M. L. (NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
August 12, 2013
Publication Date
September 1, 1985
Publication Information
Publication: American Ceramic Society Bulletin
Volume: 64
ISSN: 0002-7812
Subject Category
NONMETALLIC MATERIALS
Funding Number(s)
CONTRACT_GRANT: DE-AI01-77CS-51040
Distribution Limits
Public
Copyright
Other