Behavior of detonation nanodiamond at high pressures and temperatures in the presence of a hydrogen-containing fluid

T. D. Varfolomeeva; A. G. Lyapin; S. V. Popova; N. F. Borovikov; I. P. Zibrov; V. V. Brazhkin

doi:10.1134/S0020168516040142

Behavior of detonation nanodiamond at high pressures and temperatures in the presence of a hydrogen-containing fluid

Authors: Varfolomeeva T.D.¹, Lyapin A.G.¹, Popova S.V.¹, Borovikov N.F.¹, Zibrov I.P.¹, Brazhkin V.V.¹
Affiliations:
1. Vereshchagin Institute of High-Pressure Physics
Issue: Vol 52, No 4 (2016)
Pages: 351-356
Section: Article
URL: https://journals.rcsi.science/0020-1685/article/view/157443
DOI: https://doi.org/10.1134/S0020168516040142
ID: 157443

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Abstract

The recrystallization of detonation nanodiamond in the presence of hydrogen-containing fluids has been studied at pressures from 6 to 8 GPa and temperatures above 1000°C. Electron microscopy and Xray diffraction data demonstrate that, in the presence of a hydrogen-containing fluid, nanocrystalline diamond recrystallizes to micron dimensions. We discuss the mechanism underlying the influence of hydrogencontaining media on the growth of diamond nanocrystals.