Fabrication of TiO₂/SiO₂ Composite Coating via a High-Temperature Self-Organizing Microporous TiO₂ Layer on Ti

• Miura-Fujiwara Eri

  Department of Materials and Synchrotron Radiation Engineering, Graduate School of Engineering, University of Hyogo Faculty of Materials Science and Chemistry, School of Engineering, University of Hyogo

• Tanaka Yoshinobu

  Faculty of Materials Science and Chemistry, School of Engineering, University of Hyogo

• Harada Hiroshi

  Department of Materials and Synchrotron Radiation Engineering, Graduate School of Engineering, University of Hyogo

• Kikuchi Takeyuki

  Faculty of Materials Science and Chemistry, School of Engineering, University of Hyogo Department of Chemical Engineering and Materials Science, Graduate School of Engineering, University of Hyogo

• Yamasaki Thoru

  Department of Materials and Synchrotron Radiation Engineering, Graduate School of Engineering, University of Hyogo Faculty of Materials Science and Chemistry, School of Engineering, University of Hyogo

Bibliographic Information

Other Title

• Fabrication of TiO₂/SiO₂ Composite Coating via a High-Temperature Self-Organizing Microporous TiO₂ Layer on Ti

Abstract

We studied the fabrication of a TiO₂/SiO₂ composite coating on Ti. At a temperature above 1100 K with oxygen partial pressure, a self-organized coating of rutile phase TiO₂ is formed on a Ti substrate. The thick TiO₂ coating (> 10 μm) had a “piecrust-like” multilayer structure, which comprise TiO₂ monolayers and gaps. A composite coating containing SiO₂ was fabricated via a sol-gel method in vacuum to improve the exfoliation strength of the brittle, porous TiO₂ coating. Cross-sectional SEM images revealed sufficient amounts of SiO₂ in the gaps between the TiO₂ monolayers in the TiO₂/SiO₂ composite coating, even at the interface between the oxide coating and the substrate. Exfoliation stress of the composite coating was up to 10–15 times higher than for the self-organized TiO₂ coating alone, and the composite coating's failure mode was interfacial compared with cohesive for the self-organized TiO₂ coating.

Journal

• MATERIALS TRANSACTIONS

  MATERIALS TRANSACTIONS 57 (12), 2008-2014, 2016

  The Japan Institute of Metals and Materials

Keywords

• titanium (Ti)
• titanium dioxide
• vacuum sol-gel method
• composite material
• dental material

Details

• CRID: 1390001204254183552
• NII Article ID: 130005284384
• NII Book ID: AA1151294X
• DOI: 10.2320/matertrans.mi201509
• ISSN: 13475320
• ISSN: 13459678
• NDL BIB ID: 027758417
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I027758417
• Web Site: https://www.jstage.jst.go.jp/article/matertrans/57/12/57_MI201509/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed