Effect of Gold Coating on Interfacial Reaction between Dental Porcelain and Titanium

• Miura Eri

  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

• Tabaru Tatsuo

  Institute for Structural and Engineering Materials, National Institute of Advanced Industrial Science and Technology

• Liu Jie

  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

• Tanaka Yasuhiro

  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

• Shiraishi Takanobu

  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

• Hisatsune Kunihiro

  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

Bibliographic Information

Other Title

• 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
• チタン トウザイ ヤキツケ ゴウキン カイメン ハンノウ エ ノ キン コーティング ノ コウカ

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

  The Japan Institute of Metals and Materials

Keywords

• Titanium
• fused porcelain
• interface
• gold ion-coated layer
• adhesion

Details

• CRID: 1390282681456735744
• NII Article ID: 10017152956
• NII Article ID: 30018843223
• NII Book ID: AN00187860
• DOI: 10.2320/jinstmet.70.51
• ISSN: 18806880
• ISSN: 24337501
• ISSN: 00214876
• NDL BIB ID: 7804644
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I7804644
• Web Site: https://www.jstage.jst.go.jp/article/jinstmet/70/1/70_1_51/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed