Fabrication and wear resistance of Ni-CeO₂ nanocomposite coatings by electrodeposition under ultrasound condition
by Yu-Jun Xue, Ji-Shun Li, Wei Ma, Ming-De Duan, Ming-Ming Lan
International Journal of Surface Science and Engineering (IJSURFSE), Vol. 4, No. 3, 2010

Abstract: Ni-CeO₂ nanocomposite coatings were fabricated by electrodeposition from a modified Watt's type electrolyte containing CeO₂ nanoparticles with an average particle size of 30 nm, where an ultrasonic field was imposed during electrodeposition process. The surface morphologies, crystal structure, vickers hardness and wear resistance of the coatings were examined. It was found that the Ni-CeO₂ nanocomposite coating fabricated with ultrasound exhibited finer grains and more compact structure compared to the pure Ni coating and also the Ni-CeO₂ nanocomposite coating fabricated without ultrasound. The crystal orientation of Ni-CeO₂ nanocomposite coatings greatly changed in the presence of ultrasound. Furthermore, the imposition of ultrasound gave rise to increased hardness and wear resistance of the Ni-CeO₂ nanocomposite coating.

Online publication date: Fri, 14-May-2010

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