Corrosion Resistance of Ni-CeO2 Nanocomposite Coatings Prepared by Pulse Electrodeposition in an Ultrasonic Field

doi:10.3724/SP.J.1077.2010.00522

Journal of Inorganic Materials ›› 2010, Vol. 25 ›› Issue (5): 522-526.DOI: 10.3724/SP.J.1077.2010.00522

• Research Paper • Previous Articles Next Articles

Corrosion Resistance of Ni-CeO₂ Nanocomposite Coatings Prepared by Pulse Electrodeposition in an Ultrasonic Field

XUE Yu-Jun^{1, 2} , LIU Hong-Bin^1, LAN Ming-Ming¹, HAN Hong-Biao¹, LI Ji-Shun^{1, 2}

1. School of Mechatronics Engineering, Henan University of Science and Technology, Luoyang 471003, China; 2. Henan Key Laboratory for Machinery Design and Transmission System, Henan University of Science and Technology, Luoyang 471003, China

Received:2009-09-16 Revised:2009-11-05 Published:2010-05-20 Online:2010-05-12

Abstract

Abstract:

Ni-CeO₂ nanocomposite coatings were prepared by pulse electrodeposition method in an ultrasonic field. The CeO2 content in the Ni-CeO₂ nanocomposite coatings and surface morphology of the nanocomposite coatings were examined. The corrosion resistance of Ni-CeO₂ nanocomposite coatings in 10% HCl solution was studied using static immersion method. Effects of the pulse parameters by electrodeposition with ultrasound on the corrosion resistance of Ni-CeO₂ nanocomposite coatings were analyzed. The results show that the pulse parameters and ultrasound conditions obviously influence the CeO₂ content in coatings and the microstructure of the nanocomposite coatings. Moderate pulse parameters can increase the CeO₂ content in the coatings and refine grains, while ultrasound can make the grains finer. The corrosion resistance of the Ni-CeO₂ nanocomposite coatings is related to the CeO₂ content in coatings, grain size and compact microstructure of the coatings. The best corrosion resistance for the Ni-CeO₂ nanocomposite coating is obtained under the condition of 0.2 duty cycle and 1000Hz pulse frequency in the presence of ultrasound, where Ni-CeO₂nanocomposite coating has higher CeO₂ content, finer grains and more compact microstructure.

Key words: color: black, font-family: "Times New Roman", mso-fareast-font-family: 宋体, mso-font-kerning: 1.0pt, mso-ansi-language: EN-US, mso-fareast-language: ZH-CN, mso-bidi-language: AR-SA, mso-bidi-font-weight: bold">pulse electrodeposition, ultrasound, Ni-CeO₂ nanocomposite coating, corrosion resistance

CLC Number:

TG174
TQ153

XUE Yu-Jun-1, 2 , LIU Hong-Bin-1, LAN Ming-Ming-1, HAN Hong-Biao-1, LI Ji-Shun-1, 2. Corrosion Resistance of Ni-CeO₂ Nanocomposite Coatings Prepared by Pulse Electrodeposition in an Ultrasonic Field[J]. Journal of Inorganic Materials, 2010, 25(5): 522-526.

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Corrosion Resistance of Ni-CeO₂ Nanocomposite Coatings Prepared by Pulse Electrodeposition in an Ultrasonic Field

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