Browsing by Author "Kraiev, M.V."

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    New Electrode Materials for Aluminum Production
    (Ukrainian State University of Science and Technologies, 2025) Husarova, I.O.; Omelchuk, A.O.; Grigoriev, O.M.; Kraiev, M.V.; Velichenko, Oleksandr В.
    ENG: The successful development and implementation of inert anodes in the aluminum industry could significantly reduce or even completely eliminate greenhouse gas emissions. The search for suitable inert anode materials with the necessary combination of properties remains an active area of research. Currently, three main classes of materials are being considered: ceramics, metal-ceramics, and metals. This study aims to develop a new type of composite ceramic material for use as inert anodes in the electrolytic reduction of alumina. Based on an analysis of the requirements for inert anodes in aluminum electrolysis, the oxidation-resistant and conductive ZrB2–MoSi2 composite ceramic is proposed for operation within the required temperature range. It has been demonstrated that these anodes exhibit inert behavior toward atomic oxygen and can operate stably in atomic oxygen atmospheres at temperatures up to 20000C. Furthermore, the feasibility of applying a protective ZrB2–MoSi2 coating to conventional carbon anodes via vacuum arc deposition has been experimentally confirmed. The use of non-consumable anodes with ZrB2–MoSi2 protective coatings is also proposed for the direct electrolysis of lunar regolith at 16000C, enabling oxygen and metal extraction on the Moon.