Electrotransport as a Way of Metals Deep Purification

  • G. Kovtun National Science Center «Kharkov Institute of Physics and Technology»1, Academicheskaya str., Kharkov, 61108, UkraineV.N. Karazin Kharkov National University, Department of Physics and Technology31 Kurchatov av., Kharkov, 61108, Ukraine https://orcid.org/0000-0003-4242-7697
Keywords: electrotransport, basic laws, refining of metals, zone melting under electric field

Abstract

been stated. The estimations for the ultimate distribution of impurity elements in metals at application of direct current have been presented. It has been shown that the separation of interstitial impurities (oxygen, nitrogen, hydrogen and carbon) is achieved most effectively in solid metals during electrotransport. Particular attention was focused on the process of refining metals by zone recrystallization under electrostatic field. It was established experimentally that the impurity flow arising owing to electrotransport prevails over the flow due to the effect of zone recrystallization, and effective distribution coefficients of impurity elements may
decrease, increase, or change sign, depending on the direction of the field. A new method for deep refining of refractory metals by zone melting under electric field was proposed. Prospects to use electrotransport for the refinement of metals have been discussed.

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Author Biography

G. Kovtun, National Science Center «Kharkov Institute of Physics and Technology»1, Academicheskaya str., Kharkov, 61108, UkraineV.N. Karazin Kharkov National University, Department of Physics and Technology31 Kurchatov av., Kharkov, 61108, Ukraine

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Published
2014-03-04
Cited
How to Cite
Kovtun, G. (2014). Electrotransport as a Way of Metals Deep Purification. East European Journal of Physics, 1(1), 37-46. https://doi.org/10.26565/2312-4334-2014-1-04