PHYSICOCHEMICAL SYNTHESIS OF DIAMOND IN METASTABLE RANGE

The present paper discusses the synthesis of diamond in its metastable region from carbonaceous gases, in particular methane. The diamond sy nthesis on seed crystals is made possible owing to the orientation eff ect of surface forces on the formation of a new phase. Discussed is al so the joint crystallization of diamond and graphite. The basic experi ments were made on highly dispersed diamond powders. The growth of dia mond in kinetic and diffusion regions has been studied. Presented are results of studying the fractionation of stable carbon isotopes when g rowing a diamond.