Elastic Properties of Al2O3 and Si3N4 Matrix Composites with SiC Whisker Reinforcement |
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| Authors: | Edward S. Fisher Murli H. Manghnani Ji-Fan Wang Jules L. Routbort |
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| Affiliation: | Department of Geology and Geophysics, School of Ocean and Earth Science and Technology, University of Hawaii, Honolulu, Hawaii 96822;Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439 |
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| Abstract: | A study of the elastic moduli of Al2O3 and Si3N4 ceramics reinforced with 0 to 25 wt% SiC whiskers has been performed. The Young's moduli, shear moduli, and longitudinal modulus are compared with calculated predictions for aligned fiber composites by Hill and Hashin and Rosen, and for fibers randomly oriented in three dimensions by Christensen and Waal. The measured values are in excellent quantitative agreement with those derived for the random orientation of the SiC whiskers. |
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| Keywords: | elasticity alumina silicon nitride silicon carbide whiskers |
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