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CERIUM OXYCOMPOUND, STABLE ANODE FOR MOLTEN SALT ELECTROWINNING AND METHOD OF PRODUCTION
CERIUM OXYCOMPOUND, STABLE ANODE FOR MOLTEN SALT ELECTROWINNING AND METHOD OF PRODUCTION
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机译:铈盐化合物,用于盐溶电解镀层的稳定阳极及其生产方法
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摘要
The morphology of a coating of an oxyfluoride of cerium on a conductive substrate is improved by addition of tantalum, niobium and/or other pentavalent metals. Whereas a cerium oxufluoride coating shows cracks which may extend throughout the entire thickness of the coating, thus exposing finite portions of the substrate to corrosive attack, the pentavalent-doped coating has a substantially impervious structure. In addition to improvement of the coating morphology, the electrical conductivity is increased. The pentavalent-doped cerium oxyfluoride can be produced by electrodeposition or sintering. Coatings, substrates or bodies of this material may be employed as non-consumable anodes in molten aluminum electrowinning cells, as chemical sensors, or for corrosion protection and other applications.
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