Growth of diamond microcrystals by the oriented attachment mechanism at high pressure and high temperature

For the first time it has been experimentally shown that a powder of detonation nanodiamonds (DND) and a saturated acyclic hydrocarbon, mono- or dibasic alcohol, used as the reaction mixture after treatment at high pressures (5–8 GPa) and high temperatures (1300–1800°C) results in the formation of d...

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Bibliographic Details
Published inTechnical physics letters Vol. 43; no. 1; pp. 53 - 56
Main Authors Kidalov, S. V., Shakhov, F. M., Shvidchenko, A. V., Smirnov, A. N., Sokolov, V. V., Yagovkina, M. A., Vul’, A. Ya
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 2017
Springer Nature B.V
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Summary:For the first time it has been experimentally shown that a powder of detonation nanodiamonds (DND) and a saturated acyclic hydrocarbon, mono- or dibasic alcohol, used as the reaction mixture after treatment at high pressures (5–8 GPa) and high temperatures (1300–1800°C) results in the formation of diamond single crystals up to 15 micron in size. The Raman spectrum indicates that the diamonds have a perfect of crystal structure. It has been suggested that the oriented attachment mechanism is responsible for growth of micrometer-size diamond single crystals out of DND particles with sizes of about 5 nm under these technological conditions.
ISSN:1063-7850
1090-6533
DOI:10.1134/S1063785017010084