Effects of Rotating Speed of Rotating Cylinder Electrode and Bath Composition on Fe–Ni Alloy Electroplating

IF 2.6 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Electronic Materials Letters Pub Date : 2025-05-23 DOI:10.1007/s13391-025-00571-x

Na-Young Kang, Jae-Ho Lee

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Abstract

Fe–Ni alloy was electroplated on Ti rotating cylinder electrode(RCE) at various conditions, varying rotating speed and bath conditions. The inhibition of Ni reduction increased with rotating speed of the electrode, leading to higher Fe content of deposits. The composition change with rotating speed was more apparent for RCE than stationary planar electrode, however, the trend of compositional change in the thickness direction appeared the same regardless of cathode type. Hydrogen evolution was also promoted with rise of rotating speed, causing more brittle deposits and decrease in current efficiency. To obtain complete Fe–Ni invar film (36–40 wt% Ni) without damage, not only the rotating speed but also the bath composition controlled. The Fe content of deposits increased with concentration of Fe²⁺ in the bath, and the composition of films were within target range except the Fe-richer back side than front side.

Graphical Abstract

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旋转圆柱电极转速及镀液成分对Fe-Ni合金电镀的影响

在不同转速和不同镀液条件下，在Ti旋转圆柱形电极（RCE）上电镀Fe-Ni合金。随着电极转速的增加，对Ni还原的抑制作用增强，导致镀层铁含量增加。相对于固定平面电极，RCE的成分随转速的变化更为明显，但无论阴极类型如何，其在厚度方向上的变化趋势都是一致的。转速的增加促进了析氢，导致脆性沉积增多，电流效率降低。为了获得完整的Fe-Ni invar薄膜（36-40 wt% Ni）而不损坏，不仅要控制转速，而且要控制镀液成分。随着镀液中Fe2+浓度的增加，镀层的铁含量逐渐增加，膜的组成除背面比正面富铁外均在目标范围内。图形抽象

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Electronic Materials Letters 工程技术-材料科学：综合

CiteScore

4.70

自引率

20.80%

发文量

审稿时长

2.3 months

期刊介绍： Electronic Materials Letters is an official journal of the Korean Institute of Metals and Materials. It is a peer-reviewed international journal publishing print and online version. It covers all disciplines of research and technology in electronic materials. Emphasis is placed on science, engineering and applications of advanced materials, including electronic, magnetic, optical, organic, electrochemical, mechanical, and nanoscale materials. The aspects of synthesis and processing include thin films, nanostructures, self assembly, and bulk, all related to thermodynamics, kinetics and/or modeling.