The effect of processing parameters on biocompatibility of micro-arc oxidized titanium alloys

Gunyuz M., Baydoğan M., Çimenoğlu H., Kayali E. S.

137th Annual Meeting and Exhibition of the Minerals-Metals-and-Materials-Society, Louisiana, United States Of America, 9 - 13 March 2008, pp.423-428 identifier

  • Publication Type: Conference Paper / Full Text
  • City: Louisiana
  • Country: United States Of America
  • Page Numbers: pp.423-428
  • Istanbul Technical University Affiliated: Yes

Abstract

In this study, the effect of micro-arc oxidation on surface properties including the morphology, wettability and biocompatibility of a Ti6Al4V alloy was investigated. Micro-arc oxidation process which was performed in two different electrolytic solutions, namely "Na(3)PO(4) + KOH" and "(CH(3)COO)(2)Ca center dot H(2)O + Na(3)PO(4)", formed porous titanium oxide layer composed of anatase and rutile on the surfaces. Additionally, (CH(3)COO)(2)Ca.H(2)O + Na(3)PO(4) solution caused precipitation of Ca and P containing particles. When compared to the "Na(3)PO(4) + KOH" solution, the oxide layer formed in "(CH(3)COO)(2)Ca.H(2)O + Na(3)PO(4)" solution exhibited higher roughness and better wettability. SBF tests conducted on the sample oxidized in "(CH(3)COO)(2)Ca.H(2)O + Na(3)PO(4)" solution for 30 days induced formation of hydroxyapatite over the oxide layer.