Email this article Synthesis of new polytype modifications of Fe7C3 AT 5,5 GPa
- Authors: Chepurov A.I.1, Gromilov S.A.2,3, Sonin V.M.1, Sukhikh A.S.2,3, Zhimulev E.I.1, Chepurov A.A.1, Sobolev N.V.1,3
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Affiliations:
- Institute of Geology and Mineralogy, Siberian Branch of the Russian Academy of Sciences
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences
- Novosibirsk State University
- Issue: Vol 487, No 5 (2019)
- Pages: 558-561
- Section: Geochemistry
- URL: https://journals.eco-vector.com/0869-5652/article/view/15906
- DOI: https://doi.org/10.31857/S0869-56524875558-561
- ID: 15906
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Abstract
The paper presents the results of experimental studies on the synthesis of carbide Fe7C3 at 5,5 GPa. It was found that carbide Fe3C and several polytypes of carbide Fe7C3 are formed together with diamond when the system is cooled. It is believed that Fe7C3 carbide may be a component of the Earth’s inner core. The obtained results indicate that carbide Fe7C3 in the form of polytypic modifications under natural conditions could be formed at relatively low pressures at the stage of differentiation of the Earth.
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About the authors
A. I. Chepurov
Institute of Geology and Mineralogy, Siberian Branch of the Russian Academy of Sciences
Author for correspondence.
Email: chepurov@igm.nsc.ru
Russian Federation, 3, Koptyug prospect, Novosibirsk, 630090
S. A. Gromilov
Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences; Novosibirsk State University
Email: chepurov@igm.nsc.ru
Russian Federation, 3, Lavrentev prospect, Novosibirsk, 630090; 1, Pirogova street, Novosibirsk, 630090
V. M. Sonin
Institute of Geology and Mineralogy, Siberian Branch of the Russian Academy of Sciences
Email: chepurov@igm.nsc.ru
Russian Federation, 3, Koptyug prospect, Novosibirsk, 630090
A. S. Sukhikh
Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences; Novosibirsk State University
Email: chepurov@igm.nsc.ru
Russian Federation, 3, Lavrentev prospect, Novosibirsk, 630090; 1, Pirogova street, Novosibirsk, 630090
E. I. Zhimulev
Institute of Geology and Mineralogy, Siberian Branch of the Russian Academy of Sciences
Email: chepurov@igm.nsc.ru
Russian Federation, 3, Koptyug prospect, Novosibirsk, 630090
A. A. Chepurov
Institute of Geology and Mineralogy, Siberian Branch of the Russian Academy of Sciences
Email: chepurov@igm.nsc.ru
Russian Federation, 3, Koptyug prospect, Novosibirsk, 630090
N. V. Sobolev
Institute of Geology and Mineralogy, Siberian Branch of the Russian Academy of Sciences; Novosibirsk State University
Email: chepurov@igm.nsc.ru
Academician of the Russian Academy of Sciences
Russian Federation, 3, Koptyug prospect, Novosibirsk, 630090; 1, Pirogova street, Novosibirsk, 630090References
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