Synthesis of novel oxide layers on titanium by combination of sputter deposition and micro-arc oxidation techniques

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Author(s)

    • NYAN Myat
    • Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University
    • TSUTSUMI Yusuke
    • Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University
    • OYA Kei
    • Research Institute of Science and Technology, Kogakuin University
    • DOI Hisashi
    • Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University
    • NOMURA Naoyuki
    • Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University
    • KASUGAI Shohei
    • Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University
    • HANAWA Takao
    • Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University

Abstract

A novel coating technique of thin ceramic layer resembling teeth color on titanium (Ti) surface was developed by combination of sputter deposition of metal zirconium (Zr) and subsequent micro-arc oxidation (MAO) treatment. The oxide layer grown by MAO treatment had a porous structure with a thickness of approximately 6 micrometers and was mainly composed of zirconium dioxide (ZrO<Sub>2</Sub>) with both tetragonal and monoclinic crystal structures. The surface of the specimen was hardened by this technique, and the hardness of the specimen was significantly larger than that of untreated Ti and MAO-treated Ti without Zr layer. The bonding strength test revealed that fracture occurred inside the oxide layer, indicating that adhesion between the oxide layer and the Ti substrate was sufficiently strong. From these results, this technique has an advantage for the development of novel dental materials with excellent mechanical and aesthetic properties.

Journal

  • Dental Materials Journal

    Dental Materials Journal 30(5), 754-761, 2011-09-01

    The Japanese Society for Dental Materials and Devices

References:  25

Codes

  • NII Article ID (NAID)
    10029481002
  • NII NACSIS-CAT ID (NCID)
    AA10443149
  • Text Lang
    ENG
  • Article Type
    ART
  • ISSN
    02874547
  • DOI
    10.4012/dmj.2011-067
  • Data Source
    CJP  J-STAGE 
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