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Passivation of the Aluminium Cathode During Deposition of Aluminium from Aluminium Chloride-sodium Chloride Melts by A. Bjørgum; Å. Sterten; J. Thonstad; R. Tunold; R. Ødegard is a Engineering article available to read on EtoBox.

What is Passivation of the Aluminium Cathode During Deposition of Aluminium from Aluminium Chloride-sodium Chloride Melts about?

The kinetics of aluminium deposition from NaCI-AICl, melts (c,,,,, < 10 mol%) contained in alumina crucibles was studied by linear sweep voltammetry and potential step amperometry at temperatures around 820°C. At low concentrations (r,,,, I c 0.4 mol %) the reduction of AlCl, on iiquid aluminium has been found to bediffusion controlled. At higher concentrations a passivation of the aluminium electrode was observed during the deposition reaction. The passivation appears to be caused by precipitation of alumina from supersaturated melt in the diffusion layer at the aluminium cathode.

Who reads Passivation of the Aluminium Cathode During Deposition of Aluminium from Aluminium Chloride-sodium Chloride Melts?

Author

A. Bjørgum; Å. Sterten; J. Thonstad; R. Tunold; R. Ødegard

Publisher

Elsevier Science; Elsevier ; Elsevier Ltd.; Elsevier BV (ISSN 0013-4686)

Published

1984

Language

EN

Field

Engineering (Physical Sciences)