チタン-陶材焼付合金界面反応への金コーティングの効果  [in Japanese] Effect of Gold Coating on Interfacial Reaction between Dental Porcelain and Titanium  [in Japanese]

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Author(s)

    • 三浦 永理 MIURA Eri
    • 長崎大学大学院医歯薬学総合研究科発生分化機能再建学講座 Division of Dental and Biomedical Materials Science, Department of Developmental and Reconstructive Medicine, Course of Medical and Dental Sciences, Graduate School of Biomedical Sciences, Nagasaki University
    • 田原 竜夫 TABARU Tatsuo
    • 産業総合研究所基礎素材研究部門 Institute for Structural and Engineering Materials, National Institute of Advanced Industrial Science and Technology
    • 劉 杰 [他] LIU Jie
    • 長崎大学大学院医歯薬学総合研究科発生分化機能再建学講座 Division of Dental and Biomedical Materials Science, Department of Developmental and Reconstructive Medicine, Course of Medical and Dental Sciences, Graduate School of Biomedical Sciences, Nagasaki University
    • 田中 康弘 TANAKA Yasuhiro
    • 長崎大学大学院医歯薬学総合研究科発生分化機能再建学講座 Division of Dental and Biomedical Materials Science, Department of Developmental and Reconstructive Medicine, Course of Medical and Dental Sciences, Graduate School of Biomedical Sciences, Nagasaki University
    • 白石 孝信 SHIRAISHI Takanobu
    • 長崎大学大学院医歯薬学総合研究科発生分化機能再建学講座 Division of Dental and Biomedical Materials Science, Department of Developmental and Reconstructive Medicine, Course of Medical and Dental Sciences, Graduate School of Biomedical Sciences, Nagasaki University
    • 久恒 邦博 HISATSUNE Kunihiro
    • 長崎大学大学院医歯薬学総合研究科発生分化機能再建学講座 Division of Dental and Biomedical Materials Science, Department of Developmental and Reconstructive Medicine, Course of Medical and Dental Sciences, Graduate School of Biomedical Sciences, Nagasaki University

Abstract

  Cross-sectional microstructure observation of the titanium firing porcelain inserted ion-coated gold layer was performed by SEM-EDS that can analyze light elements from boron. Two gold-coated samples applied to mirror finished titanium surface were prepared; one was applied only degassing treatment, and the other was applied firing after degassing treatment. Effect of gold coating on interfacial layer formation was investigated and discussed by the comparison with titanium/porcelain interface without gold coating. From SEM-EDS observation of the specimen, approximately 2.5 μm thickness titanium oxide layer appeared across the gold film in the degassed sample. In the titanium firing porcelain after degassing treatment, two obvious reaction layers appeared across the gold coating. One included mainly titanium and oxygen, and another included titanium, oxygen, gold and aluminum. A firing process and gold layer affected thickness of the reaction layers. Titanium/porcelain without gold coating had two reaction layers at the interface, however, many cracks and crevices appeared in the layer and between the layers. Thickness of the reaction layers decreased by gold coating, and cracks and crevices in the layer disappeared. The results suggested that titanium diffusion became lower due to gold coating, and titanium-gold reaction changed layer's microstructure. Subsequently it was suggested gold coating on titanium contributes to improvement of adhesion between titanium and porcelain due to these mechanism.<br>

Journal

  • Journal of the Japan Institute of Metals and Materials

    Journal of the Japan Institute of Metals and Materials 70(1), 51-58, 2006-01-20

    The Japan Institute of Metals and Materials

References:  15

Codes

  • NII Article ID (NAID)
    10017152956
  • NII NACSIS-CAT ID (NCID)
    AN00062446
  • Text Lang
    JPN
  • Article Type
    ART
  • ISSN
    00214876
  • NDL Article ID
    7804644
  • NDL Source Classification
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL Call No.
    Z17-314
  • Data Source
    CJP  NDL  J-STAGE 
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