Surface Characterization of Titanium Implants Treated in Hydrofluoric Acid

Danila M. Korotin, Stefan Bartkowski, Ernst Z. Kurmaev, Manfred Meumann, Eugeniya B. Yakushina, Ruslan Z. Valiev, Seif O. Cholakh

Faculty of Physics, University of Osnabrueck, Osnabrueck, Germany.
Institute of Metal Physics, Russian Academy of Sciences-Ural Division, Yekaterinburg, Russia.
Institute of Physics of Advanced Materials, Ufa State Aviation Technical University, Ufa, Russia.
Ural Federal University, Yekaterinburg, Russia.

DOI: 10.4236/jbnb.2012.31011                

Abstract

The results of XPS measurements of commercially pure titanium cp-Ti) before and after chemical treatment are presented. We have measured XPS spectra of core levels (Ti 2p, O 1s, C 1s, F 1s) and valence bands of coarse-grained cp-Ti before and after standard acid treatment accepted in dentistry (in 1% HF and 40% HF for 1 min). It is found, that acid treatment of cp-Ti reduces the content of hydrocarbons increasing the surface energy and bio-compatibility of Ti-implants. On the other hand, it is fixed that oxygen concentration on the surface of the acid treated cp-Ti is much higher than for the untreated sample, because the acid treatment removes the contaminated surface layers, increases their reactivity, provides a better passivation and formation of thick protecting TiO₂ layer.

Keywords

Commercially Pure Titanium; Surface Composition; Hydrofluoric Acid; Surface Characterization; Biocompatibility

Conflicts of Interest

The authors declare no conflicts of interest.

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