Electroplating of CoFe alloys from aqueous acetate baths

被引：10

作者：

Abd El Rehim, SS ^{[1
]}

Khaled, K

Abulkibash, AMS

Emad, M

机构：

[1] Ain Shams Univ, Fac Sci, Dept Chem, Cairo, Egypt

[2] King Fahd Univ Petr & Minerals, Dept Chem, Dhahran, Saudi Arabia

来源：

TRANSACTIONS OF THE INSTITUTE OF METAL FINISHING | 2000年 / 78卷 / 01期

关键词：

D O I：

10.1080/00202967.2000.11871302

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Films of CoFe alloys have been deposited galvanostatically onto a steel electrode from solutions containing CO(CH3COO)(2), FeSO4 and CH3COOH. The cathodic polarization, the deposition efficiency and the composition of the films were determined as a function of current density and composition of the bath. The codeposition shows an anomalous behaviour with Fe (the less noble) bring the preferentially deposited metal. This observation is interpreted in terms of suppression of Co (the move noble) deposition by a surface iron hydroxide precipitated during codeposition. The efficiency improves with increasing current density but decreases with increasing acetic acid concentration The morphology of the deposits was examined by SEM In most cases smooth dense and uniform deposits with microcracks were observed.

引用

页码：41 / 43

页数：3

共 16 条

[1] ELECTRODEPOSITION OF NICKEL-IRON ALLOYS .1. EFFECT OF AGITATION [J].