Preparation of sol-gel derived hydroxyapatite/yttria stabilized zirconia nanocomposite coatings on 316 L stainless steel

Sahar Salehi, M. H. Fathi

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    2 Citations (Scopus)

    Abstract

    In this study, nanostructured composite coatings of hydroxyapatite (HA)/30wt% yttria stabilized zirconia (YSZ) coatings containing 0, 3, 5, and 8 mol% V2O3 were successfully synthesized using the sol-gel method. The crystallite size of the coating was about ∼44-58 nm for tetragonal and cubic zirconia grain size and 75-87 nm for hydroxyapatite grain size. Crack-free and homogeneous HA-YSZ composite coatings were obtained with no observable defects. The uniform distribution of zirconia particles in composite would be highly beneficial for obtaining homogeneous coatings of HA-YSZ film and would hinder grain growth of HA phase during calcinations. The decrease in electrochemical performance of these coated samples on comparison with the uncoated type 316L St.St could be associated with chloride ion and water penetration into the coating, transport of ions through the coating, and the subsequent electrochemical reactions at the coating-metal interface.

    Original languageEnglish
    Title of host publication2010 17th Iranian Conference of Biomedical Engineering, ICBME 2010 - Proceedings
    DOIs
    Publication statusPublished - 2010 Dec 1
    Event17th Iranian Conference in Biomedical Engineering, ICBME 2010 - Isfahan, Iran, Islamic Republic of
    Duration: 2010 Nov 32010 Nov 4

    Publication series

    Name2010 17th Iranian Conference of Biomedical Engineering, ICBME 2010 - Proceedings

    Other

    Other17th Iranian Conference in Biomedical Engineering, ICBME 2010
    CountryIran, Islamic Republic of
    CityIsfahan
    Period10/11/310/11/4

    Keywords

    • Biomedical application
    • Hydroxy apatite
    • Nanocomposites
    • Sol-gel

    ASJC Scopus subject areas

    • Biotechnology
    • Physiology
    • Information Systems
    • Signal Processing

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