1. Ceramic Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 2266-98 Anagahora, Shimoshidami, Moriyama-ku, Nagoya 463-8560, Japan, Department of Earth and Planetary Systems Science, Graduate School of Science, Hiroshima University, Higashi-Hiroshima, Hiroshima, 739-8526, Japan, Toyota Central Research and Development Labs., Inc., Nagakute, Aichi, 480-1192, Japan, Department of Materials Science and Technology, Faculty of Science and Technology, Hirosaki University,...