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January 1, 2010The proceedings of the JSME annual meetingOpen Access

S0403-2-2 Crack-healing Behavior and Fatigue Property of ZrO_2/SiC Composite Ceramics

Keiji HOUJOU Syunsuke SUDO Koji TAKAHASI Kotoji ANDO

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Abstract

ZrO_2/SiC composite ceramics were sintered and subjected to three-point bending. A semi-circular surface crack of 100μm in diameter was made on each specimen. We studied crack-healing behavior. The main conclusions are as follows, (1) ZrO_2/SiC ceramics could heal a crack in N_2 gas environment. (2) The fatigue strength was enough, compared with smooth specimen. (3) A phase -transformation by healing made an improvement of fracture toughness, considerably.

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HOUJOU et al. (2010) studied this question.

synapsesocial.com/papers/6a71c0382fdcb5703edb7f7f https://doi.org/10.1299/jsmemecjo.2010.1.0_297

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