Effects of bivalent Co ion on the co-deposition of nickel and nano-diamond particles

被引：84

作者：

Wang, LP ^{[1
]}

Gao, Y ^{[1
]}

Liu, HW ^{[1
]}

Xue, QJ ^{[1
]}

Xu, T ^{[1
]}

机构：

[1] Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China

来源：

SURFACE & COATINGS TECHNOLOGY | 2005年 / 191卷 / 01期

基金：

中国国家自然科学基金;

关键词：

electrodeposition; nano-diamond; nanocomposite coatings; nickel;

D O I：

10.1016/j.surfcoat.2004.03.047

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Nano-diamond particles were co-deposited on AISI-1045 steel substrates with nickel from a Watts-type bath by conventional electrodeposition methods. The effects of Co2+ additives on the co-deposition of nano-diamond particles, the surface morphology, microhardness, surface roughness and tribological properties of nanocomposite coatings were investigated. Results in this paper showed that the addition of Co2+ in the Ni/diamond plating bath significantly improved the amount and uniformity of dispersed nano-diamond particles in the metal matrix. Moreover, it has been established that the nanocomposites obtained with the addition of Co2+ in the Ni/diamond plating bath produced much higher hardness and excellent anti-wear performance with lower friction coefficient when sliding against a steel ball. It has been assumed that Co2+ may act as a cationic stimulator, which promoted the co-deposition of nano-diamond particles with nickel and thus intensified the positive contribution of the embedded nano-diamond particles. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：1 / 6

页数：6

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