An investigation on electroless Cu-P composite coatings with micro and nano-SiC particles
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- 作者：Soheila Faraji ; Amir Hossein Faraji ; Seyed Reza Noori
- 关键词：Electroless Cu ; Micro/nano-SiC ; Corrosion ; Hardness ; Wear
- 刊名：Materials and Design
- 出版年：February, 2014
- 年：2014
- 卷：54
- 期：Complete
- 页码：570-575
- 全文大小：1348 K
文摘
Cu-P/micro-SiC and Cu-P/nano-SiC composite coatings were deposited by electroless plating and their composition and microstructure were observed by EDX (energy-dispersive analysis), SEM (scanning electron microscope) and XRD (X-ray diffraction). The corrosion resistance, microhardness and the wear resistance of the Cu-P/nano-SiC composite coatings were measured and the comparison with those of Cu coatings and Cu-P/micro-SiC coatings were given. The anti-corrosion properties of Cu coatings were investigated in 3.5% NaCl solution by the potentiodynamic polarisation and electrochemical impedance spectroscopy (EIS) techniques. Among three kinds of Cu-P based coatings, the corrosion resistance, hardness and wear resistance of Cu-P/nano-SiC coatings were the largest. This indicates that the precipitation of nano-SiC particles would improve the corrosion resistance, hardness and wear resistance of the Cu-P coatings significantly.