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Faber and Evans predicted that an Al2O3 matrix containing more than 10vol. % columnar grains or 20 vol. % platy grains would have a greatly enhanced fracture toughness ¡£ ÓÐûÓÐÈËÖªµÀÕâ¾ä»°µÄÎÄÏ׳ö´¦£¬¼°ÔÎÄ£¬ºÜ¶àÎÄÕ¶¼ÒýÓÃÁËÕâ¸ö¹æÂÉ£¬¿àÓÚÕÒ²»µ½ÎÄÏ×ÔÎÄ¡£ лл´óÀÐÃÇ? ·¢×ÔСľ³æAndroid¿Í»§¶Ë |
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