Email this article Consolidation of Nanocrystals of Detonation Nanodiamond under Thermobaric Sintering
- Authors: Bogdanov D.G.1, Plotnikov V.A.1, Bogdanov A.S.1, Makarov S.V.1, Vins V.G.2, Eliseev A.P.3, Chepurov A.A.3
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Affiliations:
- Institute of Strength Physics and Materials Science, Siberian Branch, Russian Academy of Sciences
- OOO Velman
- Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences
- Issue: Vol 10, No 1 (2019)
- Pages: 103-108
- Section: Article
- URL: https://journals.rcsi.science/2075-1133/article/view/207776
- DOI: https://doi.org/10.1134/S2075113319010040
- ID: 207776
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Abstract
Abstract—The structural and physicomechanical properties of composite materials obtained by sintering detonation nanodiamonds under high pressures and temperatures (P = 5 GPa, T = 1200°C) have been investigated. There is a slight growth of diamond crystals after sintering from 4.5 to 5.2 nm. It is shown that the strength of the samples locally reaches 14 GPa. The high microhardness of the material is due to the consolidation of diamond nanocrystals into strong polycrystalline aggregates owing to the formation of covalent bonds between crystals under high pressure and temperature conditions.
About the authors
D. G. Bogdanov
Institute of Strength Physics and Materials Science, Siberian Branch, Russian Academy of Sciences
Author for correspondence.
Email: bogdanov.d.g@mail.ru
Russian Federation, Barnaul
V. A. Plotnikov
Institute of Strength Physics and Materials Science, Siberian Branch, Russian Academy of Sciences
Email: bogdanov.d.g@mail.ru
Russian Federation, Barnaul
A. S. Bogdanov
Institute of Strength Physics and Materials Science, Siberian Branch, Russian Academy of Sciences
Email: bogdanov.d.g@mail.ru
Russian Federation, Barnaul
S. V. Makarov
Institute of Strength Physics and Materials Science, Siberian Branch, Russian Academy of Sciences
Email: bogdanov.d.g@mail.ru
Russian Federation, Barnaul
V. G. Vins
OOO Velman
Email: bogdanov.d.g@mail.ru
Russian Federation, Novosibirsk, 630060
A. P. Eliseev
Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences
Email: bogdanov.d.g@mail.ru
Russian Federation, Novosibirsk, 630090
A. A. Chepurov
Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences
Email: bogdanov.d.g@mail.ru
Russian Federation, Novosibirsk, 630090
