1. WPI Advanced Institute for Materials Research; Tohoku University; Sendai 980-8577 Japan
2. New Industry Creation Hatchery Center; Tohoku University; Sendai 980-8577 Japan
3. Energy Technology Research Institute; National Institute of Advanced Industrial Science and Technology (AIST); Umezono 1-1-1 Tsukuba 305-8568 Japan
4. State Key Laboratory of Metal Matrix Composites; School of Materials Science and Engineering; Shanghai Jiao Tong University; Shanghai 200030 P. R. China
5. CREST; JST; 4-1-8 Honcho Kawaguchi Saitama 332-0012 Japan