Electrical Conductivities of Solid and Liquid Cryolite Systems
- Authors: Rudenko A.V.1, Kataev A.A.1, Tkacheva O.Y.1,2, Red’kin A.A.1, Zaikov Y.P.1,2
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Affiliations:
- Institute of High-Temperature Electrochemistry, Ural Branch, Russian Academy of Sciences
- Ural Federal University
- Issue: Vol 2019, No 2 (2019)
- Pages: 104-107
- Section: Article
- URL: https://journals.rcsi.science/0036-0295/article/view/172913
- DOI: https://doi.org/10.1134/S0036029519020216
- ID: 172913
Cite item
Abstract
The electrical conductivities of the NaF–AlF3 cryolite systems with a cryolite ratio 2.4–3.0 containing 3.0–7.0 wt % CaF2, 1.2–2.0 wt % MgF2 and 0–8.0 wt % Al2O3 in the temperature range 700–1050°C are studied by impedance spectroscopy. The addition of CaF2 or MgF2 to molten sodium cryolite decreases the electrical conductivity. However, below the liquidus temperature in the two-phase solid–liquid region the electrical conductivity increases with the fluoride salt concentration. The electrical conductivities of the cryolite systems decrease with increasing Al2O3 concentration over the entire temperature range.
About the authors
A. V. Rudenko
Institute of High-Temperature Electrochemistry, Ural Branch, Russian Academy of Sciences
Author for correspondence.
Email: a.rudenko@ihte.uran.ru
Russian Federation, Yekaterinburg, 620137
A. A. Kataev
Institute of High-Temperature Electrochemistry, Ural Branch, Russian Academy of Sciences
Email: a.rudenko@ihte.uran.ru
Russian Federation, Yekaterinburg, 620137
O. Yu. Tkacheva
Institute of High-Temperature Electrochemistry, Ural Branch, Russian Academy of Sciences; Ural Federal University
Email: a.rudenko@ihte.uran.ru
Russian Federation, Yekaterinburg, 620137; Yekaterinburg, 620002
A. A. Red’kin
Institute of High-Temperature Electrochemistry, Ural Branch, Russian Academy of Sciences
Email: a.rudenko@ihte.uran.ru
Russian Federation, Yekaterinburg, 620137
Yu. P. Zaikov
Institute of High-Temperature Electrochemistry, Ural Branch, Russian Academy of Sciences; Ural Federal University
Email: a.rudenko@ihte.uran.ru
Russian Federation, Yekaterinburg, 620137; Yekaterinburg, 620002