Nonequilibrium Diamond Growth during the High-Temperature High-Pressure Synthesis of a Composite Material Made of a Mixture of Cobalt and Fullerene Powders
- Авторы: Bulienkov N.1, Zheligovskaya E.1, Chernogorova O.2, Drozdova E.2, Ushakova I.2, Ekimov E.3
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Учреждения:
- Frumkin Institute of Physical Chemistry and Electrochemistry
- Baikov Institute of Metallurgy and Materials Science
- Vereshchagin Institute of High-Pressure Physics
- Выпуск: Том 2018, № 1 (2018)
- Страницы: 35-41
- Раздел: Article
- URL: https://journals.rcsi.science/0036-0295/article/view/172184
- DOI: https://doi.org/10.1134/S0036029518010032
- ID: 172184
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Аннотация
A composite material (CM) reinforced by diamond particles is fabricated from a mixture of cobalt and 10 wt % C60 powders at a pressure of 8 GPa and a temperature of 1200–1300°C, which is close to the melting temperature of the metastable Co–C eutectic. The results of X-ray diffraction, Raman spectroscopy, and electron-probe microanalysis demonstrate that the CM consists of diamond and the Co3C carbide. Diamond crystals are shown to grow as plates parallel to a {100} plane according to the mechanism of nonequilibrium normal growth during liquid-phase CM synthesis. The diamond particles have a hardness of 82 GPa at an elastic recovery of 95%. The structure of the synthesized cobalt-based CM with diamond inclusions ensures its ultrahigh wear resistance and antifriction properties.
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Об авторах
N. Bulienkov
Frumkin Institute of Physical Chemistry and Electrochemistry
Автор, ответственный за переписку.
Email: lmm@phyche.ac.ru
Россия, Leninskii pr. 31, Moscow, 199071
E. Zheligovskaya
Frumkin Institute of Physical Chemistry and Electrochemistry
Email: lmm@phyche.ac.ru
Россия, Leninskii pr. 31, Moscow, 199071
O. Chernogorova
Baikov Institute of Metallurgy and Materials Science
Email: lmm@phyche.ac.ru
Россия, Leninskii pr. 49, Moscow, 119991
E. Drozdova
Baikov Institute of Metallurgy and Materials Science
Email: lmm@phyche.ac.ru
Россия, Leninskii pr. 49, Moscow, 119991
I. Ushakova
Baikov Institute of Metallurgy and Materials Science
Email: lmm@phyche.ac.ru
Россия, Leninskii pr. 49, Moscow, 119991
E. Ekimov
Vereshchagin Institute of High-Pressure Physics
Email: lmm@phyche.ac.ru
Россия, Moscow, 142190