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R-Curve Response Of Silicon Carbide Whisker-Reinforced Alumina: Microstructural Influence

Published online by Cambridge University Press:  15 February 2011

E. Y. Sun ,
C. H. Hsueh  and
P. F. Becher
E. Y. Sun
Affiliation:
Metals and Ceramics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831–6068
C. H. Hsueh
Affiliation:
Metals and Ceramics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831–6068
P. F. Becher
Affiliation:
Metals and Ceramics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831–6068
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Abstract

Rising fracture resistance with crack extension (R-curve response) can lead to improvements in the mechanical reliability of ceramics. To understand how microstructures influence the R-curve behavior, direct observations of crack interactions with microstructural features were conducted on SiC whisker-reinforced alumina. The contribution of the dominant toughening mechanisms to the R-curve behavior of these composites is discussed using experimental and theoretical studies.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 409: Symposium Q – Fracture-Instablility Dynamics, scaling and Ductile/Brittle Behavior , 1995 , 223
Copyright
Copyright © Materials Research Society 1996

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References

1. Krause, F., Fuller, E. R., and Rhodes, J. F., J. Am. Ceram. Soc., 73, 559 (1990).Google Scholar
2. Jenkins, M. G., Kobayashi, A. S., White, K. W., and Bradt, R. C., J. Am. Ceram. Soc., 70, 393 (1987).Google Scholar
3. Homeny, J. and Vaughn, W. L., J. Am. Ceram. Soc., 73, 2060 (1990).Google Scholar
4. Becher, P. F. and Wei, G. C., J. Am. Ceram. Soc., 67, C-267 (1984).Google Scholar
5. Becher, P. F., tiegs, T. N., Ogle, J. C., and Warwick, W. H. in Fracture Mechanics of Ceramics, 7, edited by Bradt, R. C., Evans, A. G., Hasselman, D. P. H., and Lange, F. F. (Plenum Publishing Corp., New York, 1986) pp. 61–73.Google Scholar
6. Becher, P. F., Hsueh, C. H., Angelini, P. and Tiegs, T. N., J. Am. Ceram. Soc., 71, 1050 (1988).Google Scholar
7. Hsueh, C. H. and Becher, P. F., Compos. Engng., 1, 129–143 (1991).Google Scholar
8. Becher, P. F., J. Am. Ceram. Soc., 74, 255 (1991).Google Scholar
9. Becher, P. F., Hsueh, C. H., Alexander, K. B., and Sun, E. Y., J. Am. Ceram. Soc., in press.Google Scholar
10. Freiman, S. W., Mulville, D. R., and Mast, P. W., J. Mater. Sci., 8, 1527 (1973).Google Scholar
11. Faber, K. T. and Evans, A. G., Acta Metall., 31, 565 (1983).Google Scholar