Affiliation: | 1. Department of Metallurgy and Ceramics Science, Tokyo Institute of Technology, , 2‐12‐1 Ookayama, Meguro‐ku, Tokyo 152‐8552 Japan;2. Department of Chemistry and Materials Science, Tokyo Institute of Technology, , 2‐12‐1 Ookayama, Meguro‐ku, Tokyo 152‐8552 Japan;3. Department of Conservation Science, Tokyo University of the Arts, , 12‐8 Ueno Park, Taito‐ku, Tokyo 110‐8714 Japan |