PREPARATION OF Al-Sc ALLOY IN CHLORIDE SYSTEM WITH MOLTEN SALT ELECTROLYSIS

来源期刊：中国有色金属学报(英文版)1998年第4期

论文作者：Tian Yanwen Sun Benliang Zhai Yuchun

文章页码：626 - 631

Key words：Al-Sc Alloy　,NaCl-KCl(equimolar)-ScCl₃ system　,molten salt electrolysis

Abstract: NaCl-KCl(equimolar)-ScCl₃system was chosen as the electrolyte, 3-factor quadratic common rotation combination orthogonal design was employed to investigate the effects of temperature,t, current density,J, and the content of ScCl3in the molten salt,w(ScCl₃), on the content of Sc in the Al-Sc alloys, w(Sc), and the current efficiency,η_I, in the preparation of Al-Sc alloy with molten salt electrolysis. The regression functions of the relationships of ω(Sc) and η_I with t,J and ω(ScCl₃) were set up. Under the conditions chosen in the experiments,w(Sc) andηIcan reach about 8% and 85% respectively.