Preparation of Gd-Ni alloy film in urea-NaBr melt

来源期刊：中国有色金属学报(英文版)2001年第3期

论文作者：童叶翔 刘莉治 徐常威 刘贵华 杨绮琴

文章页码：451 - 454

Key words：urea-NaBr melt; electroreduction; inductive codeposition; amorphous alloy

Abstract: Electroreduction of Ni(Ⅱ) to metallic Ni in urea-NaBr melt at 373 K is irreversible in one step. Gd(Ⅲ) is not reduced to Gd alone, but can be inductively codeposited with Ni(Ⅱ). The amorphous Gd-Ni alloy films were obtained by potentiostatic electrolysis and galvanostatic electrolysis. With the cathode potential shift to negative direction and the increase of current density, the content of gadolinium in the alloy increases first, and then drops down gradually. The molar ratio of Gd(Ⅲ) to Ni(Ⅱ) and the time also influence the content of Gd. Crystalline GdNi₃ alloy was obtained after heat treatment of the deposit.