β Scribed by Hisako Hirai; Ken-Ichi Kondo; Takeshi Ohwada
No coin nor oath required. For personal study only.
Shock compression of C, fulierene was carried out in the range 8 to 53 GPa by applying a rapid cooling technique: The isolated C, fullerene crystals were sandwiched by gold heat sink. A transition of Cm fullerene to diamond without through graphite was successfully quenched from shock loading. At a shock pressure of 53 GPa, numerous diamond crystalhtes which formed a cluster were obtained. At 25 and I6 GPa. diamond cluster as well as more or less altered CM crystals were observed. At 8 GPa, almost unchanged t& crystals remained. Not a trace of transition from Cm to graphite and reversion to graphite was found in the present experiment. The diamond crystallites from a C, crystal represented distinct morphology, wide size distribution, and random orientation, which indicates that the transition mechanism is reconstructive.
π SIMILAR VOLUMES