ELECTRODE PROCESS OF ELECTROLYTIC COATING OF Al IN FUSED NaCl-KCl SALT BATH
MA Zhangyuan; XU Zhiqiang; CAO Tieliang; SHI Shengtai (Shih Shing-Tai)(Shanghai Institute of Metallurgy; Academis Sinica) (Manuscript received 22 July; 1984; revised manuscript 26 November; 1985)
Cite this article:
MA Zhangyuan; XU Zhiqiang; CAO Tieliang; SHI Shengtai (Shih Shing-Tai)(Shanghai Institute of Metallurgy; Academis Sinica) (Manuscript received 22 July; 1984; revised manuscript 26 November; 1985). ELECTRODE PROCESS OF ELECTROLYTIC COATING OF Al IN FUSED NaCl-KCl SALT BATH. Acta Metall Sin, 1987, 23(3): 257-261.
Abstract The standard oxidation/reduction potential of Al including its valence state in fused salt was examined, The anodic dissolution of Al can be shown by the equation Al→Al~3+3e. The standard oxidation/reduction potential of Al in fused salt is-1.122V as obtained by graphical method. Cathodic process has been investigated by means of steady state method. Separate potentials of some ions, the coefficient of diffusion ,of AlCl_4~- ion and kinetic constants of Al ion reduction have been meastured and discussed.
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