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Properties of RBSN and RBSN-SiC compositesStrengths, fracture toughnesses, hardnesses, and dimensional changes have been measured for RBSN and RBSN/SiC composites. Samples were made from mixtures of Si and either Si- or C-rich SiC powders. For pure, 75 pct dense RBSN dispersed with octanol, strengths up to 858 MPa have been achieved. Improved strengths result from a combination of microstructural perfection and increased fracture toughness. The mechanical properties of the composites were approximately equal to those of methanol processed RBSN but not quite equal to those of the octanol-processed RBSN. Results are discussed in terms of observed microstructural features.
Document ID
19900064865
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Lightfoot, A.
(Massachusetts Inst. of Tech. Cambridge, MA, United States)
Ker, H. L.
(Massachusetts Inst. of Tech. Cambridge, MA, United States)
Haggerty, J. S.
(MIT Cambridge, MA, United States)
Ritter, J. E.
(Massachusetts, University Amherst, United States)
Date Acquired
August 14, 2013
Publication Date
August 1, 1990
Publication Information
Publication: Ceramic Engineering and Science Proceedings
Volume: 11
ISSN: 0196-6219
Subject Category
Composite Materials
Accession Number
90A51920
Funding Number(s)
CONTRACT_GRANT: DAAG03-88-K-0099
CONTRACT_GRANT: NAG3-845
Distribution Limits
Public
Copyright
Other

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