Evaluating a new material for Hall-Heroult cell cathodes

Abstract

Ti3SiC2 is evaluated as a new material for Hall-Heroult cell cathodes to improve electrical efficiency and service life, and reduce pollution from the fabrication and disposal of liners. Ti3SiC2 shows a significant degree of corrosion resistance when in contact with molten cryolite. Corrosion resistance is observed despite the oxidizing conditions employed and the significant portion of TiC contamination observed in hot-pressed parts.