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pro vyhledávání: '"Hiroaki Ohfuji"'
Autor:
Hideaki Kawamura, Hiroaki Ohfuji
Publikováno v:
High Pressure Research. 40:162-174
Here we report a novel route for synthesizing nano-polycrystalline diamond (NPD) using stearic acid (C18H36O2) as a starting material under high pressure and high temperature. The obtained NPD show...
Publikováno v:
High Pressure Research. 40:96-106
Nano-polycrystalline diamond (NPD) with various grain sizes has been synthesized from glassy carbon at pressures 15–25 GPa and temperatures 1700–2300°C using multianvil apparatus. The minimum tempe...
Autor:
Tomohiko Hisakuni, Keisuke Niwase, Toru Shinmei, Shin-ichi Honda, Yuji Higo, Tetsuo Irifune, Tadao Iwata, Mititaka Terasawa, Masahito Niibe, Hiroaki Ohfuji
Publikováno v:
Diamond and Related Materials. 82:132-136
Highly oriented pyrolytic graphite (HOPG) is a unique source material for the synthesis of new types of diamond. It can transform to layered nano-polycrystalline diamond (NPD) under static high pressure and high temperature (HPHT) and to “amorphous
Autor:
Hiroaki Ohfuji
Publikováno v:
Nihon Kessho Gakkaishi. 60:9-16