Biomineralization capability of adherent bio-glass films prepared by magnetron sputtering

  • G. E. Stan
  • S. Pina
  • D. U. Tulyaganov
  • J. M. F. Ferreira
  • I. Pasuk
  • C. O. Morosanu
Article

Abstract

Radiofrequency magnetron sputtering deposition at low temperature (150°C) was used to deposit bioactive glass coatings onto titanium substrates. Three different working atmospheres were used: Ar 100%, Ar + 7%O2, and Ar + 20%O2. The preliminary adhesion tests (pull-out) produced excellent adhesion values (~75 MPa) for the as-deposited bio-glass films. Bioactivity tests in simulated body fluid were carried out for 30 days. SEM–EDS, XRD and FTIR measurements were performed. The tests clearly showed strong bioactive features for all the prepared films. The best biomineralization capability, expressed by the thickest chemically grown carbonated hydroxyapatite layer, was obtained for the bio-glass coating sputtered in a reactive atmosphere with 7% O2.

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Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  • G. E. Stan
    • 1
  • S. Pina
    • 2
  • D. U. Tulyaganov
    • 2
  • J. M. F. Ferreira
    • 2
  • I. Pasuk
    • 1
  • C. O. Morosanu
    • 1
  1. 1.National Institute of Materials PhysicsBucharest-MagureleRomania
  2. 2.Department of Ceramics and Glass Engineering, CICECOUniversity of AveiroAveiroPortugal

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