"

Cookies ussage consent

Our site saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing our site without changing the browser settings you grant us permission to store that information on your device.

I agree, do not show this message again.

Electrodeposited hydroxyapatite thin films modified by ion beam irradiation

M. S. DJOŠIĆ1, N. BIBIĆ2, M. N. MITRIĆ2, M. ŠILJEGOVIĆ2, J. N. STOJANOVIĆ1, B. JOKIĆ3, Dj. T. JANAĆKOVIĆ3, V. B. MIŠKOVIĆ-STANKOVIĆ3,*

Affiliation

  1. Institute for Technology of Nuclear and Other Mineral Raw Materials, Franse d’Epere 86, 11000 Belgrade, Serbia
  2. Institute of Nuclear Sciences “Vinča”, P.O.Box 522, 11001 Belgrade, Serbia
  3. Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, P.O.Box 3503, 11120 Belgrade, Serbia

Abstract

Surface modification of hydroxyapatite (HA) thin films electrodeposited on titanium was conducted by ion implantation, using nitrogen and argon ions at different constant fluences of 1x1015 , 1x1016 and 1x1017 ions/cm 2 . SEM and XRD analysis, as well as SRIM calculation, were used to monitor the changes induced by ion bombardment. In the case of HA film implanted with N4+ ions, the unit cell parameters and unit cell volume increase with increasing nitrogen ion fluences. Similarly, the unit cell parameters and unit cell volume increase after Ar 6+ ions irradiation to a 1x10 15 ions/cm2 . At higher fluences, the unit cell parameters and unit cell volume decrease when argon ion fluences increase to 1x10 16 and 1x10 17 ions/cm 2 . These structural changes are consequence of different mechanism of energy transfer of nitrogen and argon ions to HA film. For nitrogen ion irradiation electron energy loss is predominant, while for argon ion irradiation nuclear energy transfer to HA film prevails..

Keywords

Films; Surfaces; Hydroxyapatite; Ion implantation.

Submitted at: Oct. 31, 2009
Accepted at: Nov. 19, 2009

Citation

M. S. DJOŠIĆ, N. BIBIĆ, M. N. MITRIĆ, M. ŠILJEGOVIĆ, J. N. STOJANOVIĆ, B. JOKIĆ, Dj. T. JANAĆKOVIĆ, V. B. MIŠKOVIĆ-STANKOVIĆ, Electrodeposited hydroxyapatite thin films modified by ion beam irradiation, Journal of Optoelectronics and Advanced Materials Vol. 11, Iss. 11, pp. 1848-1854 (2009)