Metal-Ceramic Composites Based on Iron Oxide for Low-Consumption Anode during Electrolytic Extraction of Aluminum

Аннотация

Metal-ceramic materials based on NiFe₂O₄ and Fe₂O₃ with additions of copper oxide and transition metals Cu, Ni, Co, and Fe were obtained. Changes in the phase content of materials based on iron oxide were shown, and the electrical conductivity of the obtained composites was studied. Samples of inert anodes were tested in an electrolytic cell; high resistance of cermets NiFe₂O₄ + Cu, Ni against alumina-cryolite melts and stability of aluminum electrolysis were established.