A study on the mechanism of formation of electrocodeposited Ni-diamond coatings

被引：91
|
作者：
Lee, EC [1 ]
Choi, JW [1 ]
机构：
[1] Korea Univ, Div Engn & Mat Sci, Seoul 136701, South Korea
来源：
SURFACE & COATINGS TECHNOLOGY | 2001年 / 148卷 / 2-3期
基金：
新加坡国家研究基金会;
关键词：
electroco-deposition; nickel; diamond; rotating disc electrode; electrophoresis;
D O I：
10.1016/S0257-8972(01)01352-4
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Co-deposition behavior of diamond particles and nickel onto a steel in nickel sulfamate baths has been investigated using both a rotating disc and wire geometries. Based on the zeta potential measurement and the change of diamond content of the deposits with electrical potential strength, diamond particles attracted to the cathode electrophoretically after adsorption of positive nickel ions. Results of polarization studies showed that since the rate of nickel deposition was controlled by both mass transfer of the nickel ions and electrochemical deposition. diamond content in nickel-diamond deposits decreased with increasing applied potential and stirring speed in the relatively high rotation speed ranges. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：234 / 240
页数：7
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