Тип публикации: доклад, тезисы доклада, статья из сборника материалов конференций
Конференция: Scientific research of the SCO countries: synergy and integration; Beijing; Beijing
Год издания: 2025
Идентификатор DOI: 10.34660/INF.2025.72.79.050
Ключевые слова: current density, diffusion overvoltage, polarization dependences, mass transfer coefficient, salt melts, metal alloys
Аннотация: The article presents the results of studies of stationary polarization dependences under potentiostatic conditions during electrolysis of molten salts using electrodes made of liquid and solidified metal alloys and the intensity of mass transfer at polarized electrodes, characterized by the mass transfer coefficient Ks. During cathПоказать полностьюodic polarization of liquid metal alloys at the interphase boundary (IPB) of electrodes with electrolytes, structures arise in the electrolyte and in the metal phase, caused by interphase convection in the form of vortices linked to each other - circulation cells and natural convection in the form of electrolyte jets rising from the IB under the action of the Archimedes lifting force and metal jets descending from the IB. IBs have a characteristic maximum current density. The intensity of mass transfer in this case is relatively high, and Ks is of the order of 10-4 m/s. During solidification of the alloy electrode, interphase convection does not develop, only natural convection occurs in the MG, and the value of Ks decreases by one or two orders of magnitude and is 10-6 - 10-5 m/s. During anodic polarization of liquid alloys, structures caused by interphase and natural convection in the electrolyte are formed in the form of film laminar flows along the interphase boundary. Ks in this case is of the order of 10-5 m/s.
Журнал: Scientific research of the SCO countries: synergy and integration
Номера страниц: 162-170
Место издания: Beijing