Wollastonite and calcium phosphate biocoatings with Zn- and Cu-incorporation produced by a microarc oxidation method

Maria B. Sedelnikova, Ekaterina G. Komarova, Yury Petrovich Sharkeev

    Research output: Contribution to journalArticlepeer-review

    6 Citations (Scopus)

    Abstract

    Investigations of wollastonite and calcium phosphate biocoatings with Zn- and Cu-incorporation produced by a microarc oxidation method were presented. Dependences of coating properties on the microarc oxidation parameters were revealed. A variation of the process parameters allowed us to produce wollastonite-calcium phosphate coatings with a plate-like structure, thickness of 25-30 μm, roughness of 2.5-5.0 μm, and enhanced strength properties. Coatings based on substituted hydroxyapatite deposited under voltages of 200-250 V have an X-ray amorphous structure. An increase of oxidation voltage to 300 V leads to the formation of crystalline phases in the coating, such as CaHPO4 and β-Ca2P2O7. The maximum content of 0.4 at% Zn and 0.1 at% Cu was obtained for coatings based on Zn- and Cu-substituted hydroxyapatites, consequently, deposited under oxidation voltage of 250 V.

    Original languageEnglish
    Pages (from-to)144-151
    Number of pages8
    JournalKey Engineering Materials
    Volume695
    DOIs
    Publication statusPublished - 2016
    EventInternational Seminar on Biomaterials and Regenerative Medicine, BIOREMED 2015 - Oradea
    Duration: 17 Sep 201519 Sep 2015

    Keywords

    • Electrical and physical parameters
    • Microarc oxidation method
    • Substituted hydroxyapatite
    • Wollastonite

    ASJC Scopus subject areas

    • Materials Science(all)
    • Mechanics of Materials
    • Mechanical Engineering

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