1-ブチルピリジニウムクロリドーAlCl3系常温溶融塩浴からの電気Alめっき
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概要
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Electrolyte composition and the plating conditions of aluminum plating from 1-butylpyridinium chloride-AlCl3 molten salt were investigated at room temperature.The following results were obtained, (1) Electrolyte density increased with greater AlCl3 content, but conductivity and viscosity decreased.(2) The deposition potential of Al from the electrolyte changed suddenly at 50mol % AlCl3 content, and this was attributed to the difference in reduction potential between AlCl4- and Al2Cl7-(3) The current density range in which an adhesive Al plating could be obtained became wider with greater AlCl3 content. In baths with 67mol% AlCl3, dense and adhesive Al plating was obtained at 2.0A/dm2.(4) In the case of pulse plating, a very dense Al deposit was obtained at a small number of duty cycles.
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