Инд. авторы:	Palyanov Y.N., Kupriyanov I.N., Borzdov Y.M., Sokol A.G., Khokhryakov A.F.
Заглавие:	Diamond crystallization from a Sulfur - Carbon system at HPHT conditions
Библ. ссылка:	Palyanov Y.N., Kupriyanov I.N., Borzdov Y.M., Sokol A.G., Khokhryakov A.F. Diamond crystallization from a Sulfur - Carbon system at HPHT conditions // Crystal Growth & Design. - 2009. - Vol.9. - Iss. 6. - P.2922-2926. - ISSN 1528-7483. - EISSN 1528-7505.
Внешние системы:	DOI: 10.1021/cg900265c; SCOPUS: 2-s2.0-66849143387;
Реферат:	eng: In this paper, we report on diamond synthesis in the sulfur - carbon (S-C) system at temperatures in the range of 1550-2000 °C and pressures of 6.3-7.5 GPa. It is established that crystallization of carbon phases (diamond and graphite), the degree of the graphite-to-diamond conversion, and diamond crystal morphology are primarily determined by the pressure - temperature (P-T) conditions. It is suggested that the most probable medium of diamond crystallization in the S-C system is the melting of carbon disulfide CS 2. Fourier transform infrared (FTIR) microspectroscopy revealed that synthesized diamond crystals contained nitrogen impurity in the form of A and C defects with a total nitrogen concentration up to 1500 ppm. For the crystals with high nitrogen content, hydrogen-related centers are typically observed. Addition of water to the S - C system results in a decrease in the diamond synthesis temperature and a change in diamond crystal morphology from cuboctahedron to octahedron. © 2009 American Chemical Society.
Издано:	2009
Физ. характеристика:	с.2922-2926