1. Dept. of Metallurgical Eng., Faculty of Eng., Toyama University, Gofuku 3190, Toyama 930, JAPAN (0764)-41-1271
2. Center for Cooperative Res., Toyama University, Gofuku 3190, Toyama 930, JAPAN (0764)-41-1271
3. Hydrogen Isotope Res. Center, Toyama University, Gofuku 3190, Toyama 930, JAPAN (0764)-41-1271