Effect of the Temperature Factor on the Morphology of a Copper–Zinc Alloy during Anodic Polarization in a Molten Chloride
- Authors: Karfidov E.A.1,2, Nikitina E.V.1,2, Kazakovtseva N.A.1, Malkov V.B.1, Molchanova N.G.1
-
Affiliations:
- Institute of High-Temperature Electrochemistry, Ural Branch, Russian Academy of Sciences
- Ural Federal University
- Issue: Vol 2019, No 2 (2019)
- Pages: 101-103
- Section: Article
- URL: https://journals.rcsi.science/0036-0295/article/view/172911
- DOI: https://doi.org/10.1134/S0036029519020095
- ID: 172911
Cite item
Abstract
The effect of temperature in the range from 350 to 650°С on the morphology of L63 brass (37 wt % Zn) during selective anodic dissolution in the eutectic salt melt of lithium, cesium and potassium chlorides is studied. Anodic polarization is accompanied by a change in the state of electrode surface due to the passage of the electronegative alloy component (zinc) into a corrosive medium and to the vacancy-induced rearrangement of the electropositive component (copper). Microscopy, gravimetry, chemical analysis, and hydrostatic weighing are used to estimate the laws of formation of a developed anode surface under galvanostatic conditions of the electrochemical dissolution of the bimetallic alloy. An increase in the temperature leads to a decrease in the selectivity of alloy dissolution, the porosity, and the developed surface of the materials.
About the authors
E. A. Karfidov
Institute of High-Temperature Electrochemistry, Ural Branch, Russian Academy of Sciences; Ural Federal University
Email: neekeetina@mail.ru
Russian Federation, Yekaterinburg, 620137; Yekaterinburg, 620002
E. V. Nikitina
Institute of High-Temperature Electrochemistry, Ural Branch, Russian Academy of Sciences; Ural Federal University
Author for correspondence.
Email: neekeetina@mail.ru
Russian Federation, Yekaterinburg, 620137; Yekaterinburg, 620002
N. A. Kazakovtseva
Institute of High-Temperature Electrochemistry, Ural Branch, Russian Academy of Sciences
Email: neekeetina@mail.ru
Russian Federation, Yekaterinburg, 620137
V. B. Malkov
Institute of High-Temperature Electrochemistry, Ural Branch, Russian Academy of Sciences
Email: neekeetina@mail.ru
Russian Federation, Yekaterinburg, 620137
N. G. Molchanova
Institute of High-Temperature Electrochemistry, Ural Branch, Russian Academy of Sciences
Email: neekeetina@mail.ru
Russian Federation, Yekaterinburg, 620137
![](/img/style/loading.gif)