Abstract
Diamond single crystals with decahedral and icosahedral faceting and dimensions of 50–80 nm have been obtained by high-temperature high-pressure treatment of an ultradisperse detonation-synthesized diamond (UDD) powder. It is concluded that the growth of diamonds is related to the oriented association of initial UDD nanoparticles, the driving force of which is the tendency of the system to the state of minimum surface energy. The crystal habit is determined by the crystal morphology of UDD nanoparticles, which possess regular polyhedral shapes and flat facet morphology.
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Original Russian Text © G.S. Oleynik, A.V. Kotko, 2008, published in Pis’ma v Zhurnal Tekhnicheskoĭ Fiziki, 2008, Vol. 34, No. 15, pp. 55–62.
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Oleynik, G.S., Kotko, A.V. Self-organization of ultradisperse diamond particles heated at high pressures. Tech. Phys. Lett. 34, 659–662 (2008). https://doi.org/10.1134/S1063785008080105
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DOI: https://doi.org/10.1134/S1063785008080105