Materials: Ultrahard polycrystalline diamond from graphite.
Irifune
Tetsuo
T
Geodynamics Research Center, Ehime University, Matsuyama 790-8577, Japan. irifune@dpc.ehime-u.ac.jp
Kurio
Ayako
A
Sakamoto
Shizue
S
Inoue
Toru
T
Sumiya
Hitoshi
H