The titanium trichloride (TiCl3) was used as the precursor, and titania nanorod films were highly ordered grew on Ti-6Al-4 Valloy substrate via a facile hydrothermal method.The morphology and crystal structure of titania film were characterized by scanning electron microscopy (SEM) , field-emission electron microscope (FESEM) and X-ray diffraction (XRD) .The results demonstrated that the as-deposited titania film was mischcrystal, with rutile highenergy (101) facet exposed.It was preferential grew along [001]orientation, which was perpendicular to the surface.Moreover, the hydrothermal method can also be adopted in 3D printing titanium alloy implant.The apatite would grow on the as-treated implant after immersion in simulated body fluid (SBF) for 3 days, which has good vitro bioactivity and great potential for application in surface modification of orthopedics and dental implants.%使用TiCl3盐酸溶液作为前驱液, 通过简单易操作的水热法在Ti-6Al-4V合金基体表面原位生长TiO2纳米棒阵列薄膜.使用扫描电子显微镜 (SEM) 、场发射电子显微镜 (FESEM) 和X射线衍射仪 (XRD) 等手段研究不同水热反应条件对其表面形貌和结构的影响.结果表明:纳米棒阵列薄膜为混晶结构, 具有沿[001]轴择优生长和金红石 (101) 高能晶面曝露的特点, 并且能够适用于3D打印的多孔钛合金种植体, 说明了该薄膜具有一定的普适性.该基体表面的TiO2在3d就能诱导羟基磷灰石的生长, 说明其具有优异的生物活性, 显示了其在骨科、牙科等植入体表面改性领域的应用前景.
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