中文摘要：

在含有Ca^2＋，PO4^3-和F的电解液中，用电化学恒电流方法，在工作电流为0．9mA温度为60℃的条件下沉积60min，在医用钛（Ti）表面上制得含氟羟基磷灰石（FHAP）涂层。采用扫描电镜（SEM）、能量弥散X射线谱（EDS）、X射线衍射（XRD）对涂层进行表征，用傅里叶变换红外光谱（FTIR）考察了氟离子的引入对涂层构象和生物活性的影响。结果表明：氟部分取代磷灰石中的羟基，FHAP晶格常数变小，涂层相貌由疏松的微米级的菊花瓣状变化为致密的纳米级的尖锥状。FTIR分析表明，涂层中羟基的伸缩和弯曲振动模式的对称性发生了改变，模拟体液浸泡后涂层覆盖碳磷灰石，涂层生物活性良好。

英文摘要：

Fluoridated hydroxyapatite coatings （FHAP） were prepared on titanium substrate by electrochemical deposition tech nique containing Ca2＋ , PO4^3- , and F ions. The deposition was all conducted at a constant current of 0. 9 mA for 60 min at 60 ℃. The as-prepared coatings were exa mined by scanning electron microscope （SEM）, energy-dispersive Xray spectroscopy （EDS）, Fourier transform infrared spectroscopy （FTIR） and Xray diffraction （XRD） tests. The results indicate that the FHAP cryatals take the morphology of nanoscale-rodlike cone rather than the micron-daisy petal, and the composite coating becomes more compact. The FTIR test indicates that the symmetry of stretching and bending vibration modes of hydroxyl changed, simu- lated body fluid immersion test proved that the FHAP coating had induced carbonate-apatite formation, indicating that the com- posite coating possesses excellent biocompatibility.