Preparation of Hydroxyapatite Composite Coatings with Interlayer of TiO2 and its Corrosion Behaviors

Cheng Hao Liang; Shu Sen Wang; Nai Bao Huang; Bo Wu

doi:10.4028/www.scientific.net/AMM.548-549.72

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 548-549Preparation of Hydroxyapatite Composite Coatings...

Preparation of Hydroxyapatite Composite Coatings with Interlayer of TiO₂ and its Corrosion Behaviors

Abstract:

Hydroxyapatite (HAP) composite coatings with interlayer of TiO₂ on Ti6Al4V alloy were prepared by microarc oxidation and electrochemical potentiostatic method. Platelet adhesion test and electrochemical behaviors of the HAP coatings were investigated in platelet-rich plasma, Ringer's solution, Tyrode's solution and human blood at 37°C. The HAP coating was characterized by scanning electron microscope (SEM), X-ray diffraction (XRD). TiO₂ coating has round ostioles on the surface with the element of O, Na, Al, Si and Ti. The HAP coating has sheet-like, column-like and batten-like crystal with the Ca/P 1.6689. The biocompatibility of HAP coating was better than the initial coating. The results indicated that the HAP coating had better characters of anticorrosion and biocompatibility.

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Periodical:

Applied Mechanics and Materials (Volumes 548-549)

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72-76

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.548-549.72

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Online since:

April 2014

Authors:

Cheng Hao Liang, Shu Sen Wang, Nai Bao Huang*, Bo Wu

Keywords:

Electrochemical Behavior, Hydroxyapatite (HA), Microarc Oxidation, Titanium Alloy

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