Inert anode produced using metal oxides and a binder that goes though a debinding step and a sintering step

摘要

A process for forming part of an anode for the production of aluminium by fused bath electrolysis is disclosed. This forms an anode material that has improved thermo-mechanical properties. The part is made from a cermet comprising at least one metallic oxide with spinel structure and at least one metallic phase. A powder containing at least one mixed oxide with spinel structure and a metal, present in the form of cations, is prepared. The metal is wholly or partly reduced, so as to form all or part of the metallic phase. The reduction operation is carried out at least partly using a powder of a carbonaceous material. A mixture containing the prepared powder and a binder is then shaped to form the part by compaction of the mixture, which then goes through a debinding operation, then a sintering operation.