Fortification of Ni-Y2O3 nanocomposite coatings prepared by pulse and direct current methods

Ranjith Bose, G. Paruthimal Kalaignan

    Research output: Contribution to journalArticlepeer-review

    9 Scopus citations

    Abstract

    Ni-Y2O3 nanocomposite coatings were prepared under direct current (DC) and pulse current (PC) using acetate bath. The microstructure and corrosion resistance of the coatings were characterized by means of XRD, SEM, AFM, and EIS. The results showed that the microstructure and performances of the coatings were greatly affected by Y2O3 content on the deposits prepared by DC and PC methods. The microhardness and corrosion resistance were enhanced in the optimum percentage of Y2O3 composite coatings. The PC composite coatings were exhibited compact surface, higher microhardness, and good corrosion resistance compared with that of the DC composite coatings.

    Original languageBritish English
    Pages (from-to)495-501
    Number of pages7
    JournalIonics
    Volume17
    Issue number6
    DOIs
    StatePublished - Jul 2011

    Keywords

    • EIS
    • Electrodeposition techniques (direct current, pulse current)
    • Microhardness
    • SEM

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