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论文类型：期刊论文

发表时间：2013-04-01

发表刊物：SURFACE ENGINEERING

收录刊物：SCIE、EI、Scopus

卷号：29

期号：3

页面范围：194-199

ISSN号：0267-0844

关键字：Nanocomposite; Electroplating; Morphology; Structure

摘要：Ni-ZrO2 nanocomposite coatings were obtained by electroplating using Watts nickel baths with different concentrations of ZrO2 particles in suspension. The substrate was horizontally immersed in the bath to enhance the ZrO2 content in the Ni matrix. X-ray diffraction analysis showed that the presence of ZrO2 leaded to the intensity of crystal face (311) sharply increasing, and, simultaneously, the crystal orientation of (220) was greatly decreased. Observation using scanning electron microscopy indicated that the incorporation of ZrO2 nanoparticles also caused changes in the morphology and size of Ni grains. Although agglomeration of ZrO2 nanoparticles occurs in the deposits, the nanocomposites exhibited a great improvement in wear resistance compared to those of unreinforced Ni coating.