Development of technology for producing a wettable coating on a carbon cathode by electrodeposition

Abstract

The article deals with the technology of producing an aluminium-wettable coating in the process of electrolysis of cryolite-alumina melts. This technology has been implemented under laboratory conditions by electrodeposition of boron on the surface of the carbon-titanium cathode. The presence of a 100-500 µm near-surface layer of boride-carbide compounds, synthesized in the process of a 20-42 hour electrolysis, is confirmed by X-ray diffraction and SEM-EDS analyses.