1. 1) T. Horita, K. Yamaji, H. Kishimoto and H. Yokokawa, “Some issues and prospects for realization of solid oxide fuel cells : especially for the reliability and degradation issues”, Ceramics Japan, Vol.44, No.4, pp.267-272 (2009).
2. 2) H. Miyazaki, T. Ohji and Y. Yoshizawa, “International standardization of test method for fracture resistance of silicon nitride materials for rolling bearing balls by indentation fracture (IF) method”, Ceramics Japan : Bulletin of the Ceramic Society of Japan, Vol.47, No.1, pp.42-45 (2012).
3. 3) A. G. Evans and S. M. Wiederhorn, “Proof testing of ceramic materials-an analytical basis for failure prediction”, International Journal of Fracture, Vol.10, No.3, pp.379-392 (1974).
4. 4) A. G. Evans, L. R. Russell and D. W. Richerson, “Slow crack growth in ceramic materials at elevated temperatures”, Metallurgical and Materials Transactions A, Vol.6, pp.707-716 (1975).
5. 5) A. G. Evans and S. M. Wiederhorn, “Crack propagation and failure prediction in silicon nitride at elevated temperature”, Journal of Materials Science, Vol.9, pp.270-278 (1974).