Surface Modification of the Alloy Ti-7.5Mo by Anodization for Biomedical Applications

Abstract:

The purpose of this study was to evaluate the TiO₂ nanotubes growth and the variation in its diameter to improve the surface properties of Ti-7.5Mo to use for biomedical applications. For the nanotubes TiO₂ growth, the samples were anodized in glycerol and ammonium fluoride and divided according to the anodizing potential at 5V to 10V and 24 hour time. The surfaces were examined by scanning electron microscope (SEM), X-ray analysis (XRD) and contact angle measurements. The average tube diameter, ranging in size from 13 to 23 nm, was found to increase with increasing anodizing voltage. It was also observed a decrease in contact angle in accordance with the increase in the anodizing potential. The X-ray analysis showed the presence of anatase phase in samples whose potential was 10V and this condition represents a simple surface treatment for Ti-7.5Mo alloy that has high potential for biomedical applications.

• Periodical: Materials Science Forum (Volume 869)
• Pages: 913-917
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.869.913
• Online since: August 2016
• Authors: Ana Lucia do Amaral Escada, Javier Andres Muñoz Chaves, Ana Paula Rosifini Alves Claro
• Keywords: Anodization, Nanotubes, Self-Organization, TiO₂ Nanotubes

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