Sol-Gel Derived Titania/Hydroxyapatite Layer on Titanium Substrate

W.Y. WANG; Yu Wu; Jing Pei Xie; Gao Lu; Xiao Ming Dong; Hui Wu Yu

doi:10.4028/www.scientific.net/AMM.117-119.332

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 117-119Sol-Gel Derived Titania/Hydroxyapatite Layer on...

Sol-Gel Derived Titania/Hydroxyapatite Layer on Titanium Substrate

Abstract:

In this study, calcium nitrate(Ca(NO₃)₂•4H₂O) and phosphorus pentoxide(P₂O₅) were used as precursor to prepare hydroxyapatite(HA) layer by sol-gel method, followed by a dipping-coating method to coat HA layer onto Ti. Phase formation and microstructure were investigated by XRD and SEM to study the influence of atmosphere on the property of HA layer. The results revealed that there exists no large cracks in the layer which was heated in the nitrogen, leading to a good surface quality compared with the layer which was heated in the air. And there is no obvious difference in crystallinity and volume fraction of HA in the layer when adopting heat treatment in different atmospheres.