Research output: Contribution to journal › Article › peer-review
Diamond crystallization from a tin-carbon system at HPHT conditions. / Palyanov, Yuri N.; Borzdov, Yuri M.; Kupriyanov, Igor N. et al.
In: Diamond and Related Materials, Vol. 58, 6412, 14.06.2015, p. 40-45.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Diamond crystallization from a tin-carbon system at HPHT conditions
AU - Palyanov, Yuri N.
AU - Borzdov, Yuri M.
AU - Kupriyanov, Igor N.
AU - Bataleva, Yuliya V.
AU - Khohkhryakov, Alexander F.
PY - 2015/6/14
Y1 - 2015/6/14
N2 - Diamond crystallization from the tin-carbon system has been studied at 7 GPa and temperatures ranging from 1600 to 1900 °C with reaction times from 1 to 20 h. Both diamond growth on the seed crystals and diamond spontaneous nucleation were established, providing evidence for the catalytic ability of tin. A distinctive feature of the Sn-C system is the existence of a significant induction period preceding diamond spontaneous nucleation. Temperature and kinetics are found to be the main factors governing diamond crystallization process. The minimum parameters of diamond spontaneous nucleation are determined to be 7 GPa, 1700 °C and 20 h. The stable form of diamond growth is octahedron and it does not depend on temperature. Synthesized diamonds contain high concentrations of nitrogen impurities up to about 1600 ppm.
AB - Diamond crystallization from the tin-carbon system has been studied at 7 GPa and temperatures ranging from 1600 to 1900 °C with reaction times from 1 to 20 h. Both diamond growth on the seed crystals and diamond spontaneous nucleation were established, providing evidence for the catalytic ability of tin. A distinctive feature of the Sn-C system is the existence of a significant induction period preceding diamond spontaneous nucleation. Temperature and kinetics are found to be the main factors governing diamond crystallization process. The minimum parameters of diamond spontaneous nucleation are determined to be 7 GPa, 1700 °C and 20 h. The stable form of diamond growth is octahedron and it does not depend on temperature. Synthesized diamonds contain high concentrations of nitrogen impurities up to about 1600 ppm.
KW - Defect characterization
KW - High pressure high temperature
KW - Nitrogen impurities
KW - Solvent-catalysts
KW - Synthetic diamond
UR - http://www.scopus.com/inward/record.url?scp=84931265933&partnerID=8YFLogxK
U2 - 10.1016/j.diamond.2015.06.003
DO - 10.1016/j.diamond.2015.06.003
M3 - Article
AN - SCOPUS:84931265933
VL - 58
SP - 40
EP - 45
JO - Diamond and Related Materials
JF - Diamond and Related Materials
SN - 0925-9635
M1 - 6412
ER -
ID: 25727248