Microstructure and Mechanical Properties of in Situ Al2O3pl/Ce-TZP Composites

Abstract

Abstract: The microstructure and mechanical properties of in situ Al₂O₃ platelet/Ce-TZP composites were studied. The results indicate that both the strength and fracture
toughness of the composites can be increased by introduction of in situ Al₂O₃ platelets if sintered at a suitable temperature. The reinforcement is most effective
for the specimens containing 15 vol% Al₂O₃ while the toughening effects are better than the strengthening. The mechanical properties of the composites decrease
if the sintering temperature is too low or the Al₂O₃ content is too high. The toughening mechanisms in the composites include transformation toughening
and platelet reinforcement. They are enhanced by their co-operation.

Key words: zirconia, alumina, platelet, in situ reinforcement

CLC Number:

TB332

YE Jian-Dong,LI Hong-Yan,WANG Ying-Jun. Microstructure and Mechanical Properties of in Situ Al₂O_3pl/Ce-TZP Composites[J]. Journal of Inorganic Materials.

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Microstructure and Mechanical Properties of in Situ Al₂O_3pl/Ce-TZP Composites

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