NiSO4和NaCl含量对电镀Ni溶液分散能力和Ni沉积层的影响

金属学报, 2008, 44(3): 341-345.

NiSO4和NaCl含量对电镀Ni溶液分散能力和Ni沉积层的影响

中国科学院金属研究所

关键词：电导率 , throwing power , morphology of Ni deposite

EFFECTS OF NiSO4 AND NaCl CONTENTS ON THROWING POWER OF SOLUTION ELECTROPLATING Ni AND Ni DEPOSIT

QU Wensheng , ZHANG Gong , LOU Langhong , DONG Jiasheng , YANG Ke

Keywords： electrical conductivity , 分散能力 , Ni沉积层形貌

溶液的电导率对于电沉积过程参数的设定非常重要。本文通过测量极化和分散能力，对以Watts型电镀镍溶液为基础的几种溶液进行了研究，并对Ni沉积层形貌进行了分析。结果表明，综合考虑电导率和极化度的乘积，是显著提升溶液分散能力的重要途径，而且电沉积Ni层表面形貌主要受控于电化学因素。

Electrical conductivity is a key factor for determining the variables during electrodeposition process. In this study, several electrolytes based on Watts bath have been measured by comparing electrochemical polarization and throwing power, and the morphology of Ni deposit has also been analyzed. The results showed that high value of electrical conductivity multiplying polarizability is of great importance for enhancing the throwing power of electrolyte, and the morphology of Ni deposit is mainly dominated by electrochemical factor.

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