Sol-gel derived methylsiloxane-Ca-Nb-Ta coating on titanium surface by double layered structure

Yasuto Hoshikawa, Eiichi Yasuda, Takamasa Onoki, Masaru Akao, Yasuhiro Tanabe

    Research output: Contribution to journalArticlepeer-review

    2 Citations (Scopus)

    Abstract

    Titanium (Ti) and its alloy have sufficient mechanical properties to be utilized as artificial hip joints and article teeth. However, they have no bioactivity. In this work, we prepared bioactive coatings on Ti by sol-gel techniques. The coatings had a double layered structure. Underlying layer was methylsiloxane (MS) consisted of methyltriethoxysilane (MTES). Top layer was MS-Ca-Nb-Ta hybrid composed of MTES, calcium nitrate tetrahydrate, pentaethoxy-niobium and pentaethoxy-tantalum. The coating exhibited formation of bone-like apatite in SBF immersion test. Adhesive strength of the coating was found to be 1.8 MPa.

    Original languageEnglish
    Pages (from-to)693-696
    Number of pages4
    JournalKey Engineering Materials
    Volume361-363 I
    Publication statusPublished - 2008 Jan 1

    Keywords

    • Bioactivity
    • Coating
    • Methyltriethoxysilane
    • Organic-inorganic hybrid
    • Sol-gel
    • Titanium

    ASJC Scopus subject areas

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

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