Synthesis of novel oxide layers on titanium by combination of sputter deposition and micro-arc oxidation techniques
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概要
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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 (ZrO2) 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.
- 2011-09-01
著者
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Doi Hisashi
Institute Of Biomaterials And Bioengineering Tokyo Medical And Dental University Tokyo Medical And D
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Doi Hisashi
Division Of Metallurgy Institute For Medical And Dental Engineering Tokyo Medical And Dental Univers
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Nomura Naoyuki
Institute Of Biomaterials And Bioengineering Tokyo Medical And Dental University
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Nomura Naoyuki
Institute For Materials Research Tohoku University
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TSUTSUMI Yusuke
Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University
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Hanawa T
Institute Of Biomaterials And Bioengineering Tokyo Medical And Dental University Tokyo Medical And D
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Hanawa Takao
Institute For Biomaterials And Bioengineering
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Tsutsumi Yusuke
Institute Of Biomaterials And Bioengineering Tokyo Medical And Dental University Tokyo Medical And D
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Tsutsumi Yusuke
Institute Of Biomaterials And Bioengineering Tokyo Medical And Dental University
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Nyan Myat
Graduate School Of Medical And Dental Sciences Tokyo Medical And Dental University
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Kasugai Shohei
Graduate School Of Medical And Dental Sciences Tokyo Medical And Dental University
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Oya Kei
Research Institute Of Science And Technology Kogakuin University
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Doi Hisashi
Institute Of Biomaterials And Bioengineering Tokyo Medical And Dental University
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