Effect of the duty cycle of pulsed current on nanocomposite layers formed by pulsed electrodeposition

被引：22

作者：

Aliofkhazraei, M. ^{[1
]}

Ahangarani, Sh. ^{[2
]}

Rouhaghdam, A. Sabour ^{[1
]}

机构：

[1] Tarbiat Modares Univ, Fac Engn, Dept Mat Engn, Tehran, Iran

[2] IROST, Dept Adv Mat & Renewable Engn, Tehran, Iran

来源：

RARE METALS | 2010年 / 29卷 / 02期

关键词：

nanocomposite; corrosion; nanostructure; carbon nanotubes; ELECTROCHEMICAL DEPOSITION; COMPOSITES; MATRIX;

D O I：

10.1007/s12598-010-0036-0

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Nickel-tungsten/carbon nanotube nanocomposite layers with high content and Uniform dispersion of carbon nanotubes were fabricated using pulsed electrodeposition technique. Nanocomposite layers were analyzed by scanning electron microscopy, atomic force microscopy. microhardness, and Tafel polarization tests. The effect of the duty cycle Of Pulsed current or concentration of carbon nanotubes in the metallic matrix on electrochemical and mechanical properties of obtained layers has been investigated. It has been shown that both the electrochemical and mechanical properties of nanocomposite layers that formed by pulsed Current were improved. significantly with respect to un-composed Ni-W layer. The results were not only concerned by the concentration of carbon nanotubes in the layer but also influenced by the distribution of nanoparticulates in the metallic matrix.

引用

页码：209 / 213

页数：5

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