Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/57122
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Título : Surface microstructure of the oxide protective layers grown on vanadium-free Ti alloys for use in biomedical applications
Autor : Gutiérrez, A., Munuera, C., López, M. F., Jiménez, José Antonio, Morant, C., Matzelle, T., Kruse, N., Ocal, C.
Palabras clave : SFM
Oxidation
Biomaterials
Ti alloys
Fecha de publicación : 2006
Editor: Elsevier
Citación : Surface Science 600(18) : 3780-3784 (2006)
Resumen: In this work, we present a surface study by SFM (scanning force microscopy) of three new Ti alloys of composition (in wt%) Ti–7Nb–6Al, Ti–13Nb–13Zr and Ti–15Zr–4Nb, developed for biomedical applications. V was not included in these alloys since this element has been reported to be cytotoxic. The surface of these materials has been modified by a thermal treatment in air at 750 °C for different times. As a consequence of this treatment an oxide layer develops on the surface, resulting in both an improvement of the corrosion resistance and an increase of the roughness, which enhances the adhesion of the tissue cells to the implant. SFM has been used to characterize the surface structure and topography of the oxide layers grown on the three alloys. The surface roughness analysis obtained by SFM points to a correlation between the mean square roughness, the thickness of the oxide layer, and the α-phase/β-phase ratio in the base material.
Versión del editor: http://dx.doi.org/10.1016/j.susc.2006.01.082
URI : http://hdl.handle.net/10261/57122
ISSN: 0039-6028
DOI: 10.1016/j.susc.2006.01.082
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