ABSTRACT

A Simulated Body Fluid (SBF) treatment was performed to modify the surface of a TiO₂-based coating containing Ca and P prepared by micro-arc oxidation (MAO). Scanning electron microscopy (SEM), X-ray diffraction (XRD), and X-Ray Photoelectron Spectroscopy (XPS) were employed to characterise the composition and morphology of the immersed Ca-P containing coating. The coating primarily presents a porous structure, which is mainly composed of anatase, rutile, CaP, and Nb₂O₅.The biological activity of the coating was determined by immersing in SBF for 5 days, showing hydroxyapatite (HA) formed on the surface of the coating and also revealing the good corrosion resistance of the coating in SBF. Finally, a lower MAO coating contact angle with SBF solution than that of TLM Ti alloy was obtained in the compatibility test, indicating that the coating has good compatibility with SBF.

摘要

进行模拟体液 (SBF) 处理以修饰通过微弧氧化 (MAO) 制备的含有 Ca 和 P的 TiO _{2基涂层的表面。}扫描电子显微镜 (SEM)、X 射线衍射 (XRD) 和 X 射线光电子能谱 (XPS) 用于表征浸入的含 Ca-P 涂层的组成和形态。涂层主要呈现多孔结构，主要由锐钛矿、金红石、CaP和Nb ₂ O _5组成.涂层的生物活性是通过在SBF中浸泡5天来测定的，表明涂层表面形成了羟基磷灰石（HA），同时也表明了涂层在SBF中具有良好的耐腐蚀性。最后，在相容性试验中，MAO涂层与SBF溶液的接触角低于TLM Ti合金，表明涂层与SBF具有良好的相容性。