ショットピーニングと自己き裂治癒を応用したセラミックスの信頼性向上(<小特集>M&M2009材料力学カンファレンス)

抄録

This study aimed to propose a new method for improving the strength and reliability of the ceramics, which conbined the crack healing ability with shot peening. Si_3N_4/SiC composite ceramics having high crack healing ability was used. To evaluate the effect of shot peening, the distribution of the residual stress and mechanical strength property of shot peened specimens were investigated. Moreover, the utility of shot peening effects on the crack healing ability was also investigated.