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MATHEMATICAL MODELING OF SILICON MELT VACUUM REFINING IN THE CONDITIONS OF MAGNETOHYDRODYNAMIC STIRRING

S. M. Karabanov, PhD (technical sciences), full professor, chief researcher, RSREU, Ryazan; This email address is being protected from spambots. You need JavaScript enabled to view it.
D. V. Suvorov, PhD (technical sciences), manager, CPTM, RSREU, Ryazan; This email address is being protected from spambots. You need JavaScript enabled to view it.
D. Yu. Tarabrin, PhD (technical sciences), chief researcher CPTM, RSREU, Ryazan; This email address is being protected from spambots. You need JavaScript enabled to view it.
O. A. Belyakov, post-graduate student, MRSU, Saransk; This email address is being protected from spambots. You need JavaScript enabled to view it.
A. S. Karabanov, CEO, HELIOS-Resource Ltd., Saransk; This email address is being protected from spambots. You need JavaScript enabled to view it.
E. V. Slivkin, chief engineer, RSREU, Ryazan; This email address is being protected from spambots. You need JavaScript enabled to view it.
A. E. Serebryakov, PhD (technical sciences), assistant professor, RSREU, Ryazan; This email address is being protected from spambots. You need JavaScript enabled to view it.
V. V. Klimakov, PhD (technical sciences), assistant professor, RSREU, Ryazan; This email address is being protected from spambots. You need JavaScript enabled to view it.

The paper presents research results of vacuum refining of silicon melt in the conditions of magnetohydrodynamic stirring. The results of silicon purification dynamics from impurities with high saturated vapor pressure at the temperature above the melting point of silicon are presented (for example, P, Zn, Na, Mg, Ca, Al, Cu). The influence of stirring speed on the rate of silicon purification is determined. Basic regularities and factors that limit the rate of cleaning are shown. The studies were carried out by mathematical modeling using COMSOL Multiphysics programs.

Key words: mathematical modeling, refining, silicon, magnetohydrodynamic stirring.

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