OS1723 Synthesis of high-pressure phase by shock compression of graphite using single-stage powder gun
Details
Recently, theoretical computational studies have proposed several structures of high pressure phase of carbon. Although some of these proposed phases of carbon have been synthesized at high pressure, they have not been observed at normal pressure. In this study, we made mixtures of copper powder with graphite powder to control shock temperature rise and to quench efficiently, and shock compressed it using powder gun. Several new peaks were observed in XRD patterns of the carbon component after shock compression, which suggest existence of S-, R-, W-carbon phase.
