[14p-P4-1~78] 17 Nanocarbon Technology（Poster）

[14p-P4-10] Structural changes on neutron-irradiated highly oriented pyrolytic graphite under static high pressure and temperature

〇(M1)Tomohiko Hisakuni¹, Sayaka Suzuki¹, Shinichi Honda¹, Masahito Niibe¹, Michitaka Terasawa¹, Yuji Higo², Keisuke Niwase³, Hirokazu Izumi⁴, Eiji Taguchi⁵, Tadao Iwata⁶ (1.Univ. of Hyogo, 2.JASRI, 3.Hyogo Univ. of Teacher Education, 4.Hyogo institute of Tec, 5.Osaka Univ., 6.JAERI)

Keywords:nano polycryatalline diamond, highly oriented pyrolytic graphite

Polycrystalline diamond was synthesized by direct conversion of graphite under static high pressure and temperature.
In this study, in situ structural analysis for neutron-irradiated and unirradiated HOPG samples under static high pressure and temperature was done, by using a Kawai-type multianvil apparatus with synchrotron X-ray irradiation at BL04B1 of SPring-8.
As a result, neutron-irradiated HOPG which is processed simultaneous high pressure of 16.4 GPa and high temperature of 1400℃ was converted into polycrystalline diamond.Detailed structural changes for the neutron-irradiated HOPG will be discussed at the conference.