Relationship between the properties of an interlayer formed by in situ Ti anodization and anaphoretically deposited hydroxyapatite

Journal of the Serbian Chemical Society

Stevanović Jasmina S.¹  Pantović-Pavlović Marijana R.¹  Eraković Sanja²  Panić Vladimir V.²  Pavlović Miroslav M.²  Ignjatović Nenad³  Barudžija Tanja⁴ 

[1] Institute of Chemistry, Technology and Metallurgy, University of Belgrade, Belgrade, Serbia + Centre of Excellence in Environmental Chemistry and Engineering - ICTM, University of Belgrade, Belgrade, Serbia;Institute of Chemistry, Technology and Metallurgy, University of Belgrade, Belgrade, Serbia;Institute of Technical Science of the Serbian Academy of Sciences and Arts, Belgrade, Serbia;Vinča Institute of Nuclear Sciences, University of Belgrade, Belgrade, Serbia;

关键词: titanium anodization;    roughness;    in situ anaphoretic deposition;    hydroxyapatite coating;    adhesion;    titanium oxide;   

DOI  :  10.2298/JSC190730105P

来源: DOAJ

【 摘 要 】

The optimization of the anodization process of Ti substrate for in situ synthesis of hydroxyapatite/titanium oxide composite coatings on titanium substrate was accomplished. The anodization was performed under 30, 60 and 90 V cell voltage, and the morphology of treated surface, as well as linear and surface roughness, were analysed by field emission-scanning electron microscopy, atomic force microscopy and roughness tester. It was shown by linear and surface roughness analyses that titanium anodized under 60 V has the highest roughness, whereas at 90 V the flattening of the surface occurs. As the highest surface roughness results emerged at 60 V, the novel process of composite anHAp/TiO2 coating synthesis, which comprises simultaneous processes of TiO2 formation and HAp deposition, as well as HAp impregnation within TiO2 surface layer, was performed at this voltage. Ti substrate surface was completely covered by composite coating, with no visible cracks. The adhesion quantified according to ASTM D3359-02 standard is considerably improved with respect to the coatings obtained by cathaphoretic processes, with no need of subsequent sintering. [Project of the Serbian Ministry of Education, Science and Technological Development, Grant no. ON172060]

【 授权许可】

Unknown