Ti-6Al-4V表面金红石型TiO2薄膜制备及生物活性评价  

Fabrication of rutile TiO2 film on Ti-6Al-4V alloy and evaluation of its in-vitro bioactivity

作　　者：肖帆 刘升沛 项军 陈燚云 翟月丽 XIAO Fan;LIU Shengpei;XIANG Jun;CHEN Yiyun;ZHAI Yueli(College of Mechanical Engineering,Zhejiang University of Technology,Hangzhou 310023,China;College of Materials Science and Engineering,Zhejiang University of Technology,Hangzhou 310014,China)

机构地区：[1]浙江工业大学机械工程学院,浙江杭州310023 [2]浙江工业大学材料科学与工程学院,浙江杭州310014

出　　处：《浙江工业大学学报》2021年第1期88-93,共6页Journal of Zhejiang University of Technology

基　　金：浙江省自然科学基金资助项目(LY15E020010)。

摘　　要：使用TiCl3/HCl/H2O2混合溶液为前驱液,通过水热法在Ti-6Al-4V基体表面制得原位生长的纳米棒阵列薄膜,探讨其生长机理,并研究前驱液中盐酸浓度对薄膜生长的影响作用。采用场发射扫描电子显微镜(FESEM)和X射线衍射仪(XRD)对制备样品进行表征,结果表明:纳米棒阵列薄膜为{001}高能晶面曝露的金红石二氧化钛;TiO2晶核在有序的活性成核点快速成核,并沿[001]方向生长,当前驱液中盐酸浓度从1mol/L增至2 mol/L,金红石二氧化钛{001}晶面择优增强;该薄膜具有良好的生物活性,亦能适用于3D打印多孔钛合金基体,具有一定的普适性。Rutile TiO2 film composed of highly ordered nanorod array grown on surface of Ti-6Al-4V alloy was obtained via hydrothermal method from precursor solution of TiCl3,HCl and H2O2.The effects of concentration of HCl on growth of the rutile TiO2 film and the growth mechanism were investigated.Field emission scanning electron microscopy(FESEM)and X-ray diffraction(XRD)were utilized to characterize the as-prepared samples.The results showed that the nanorod array film was identified as rutile TiO2 with high energy{001}facets exposed.The nucleation of TiO2 occurred quickly at active nucleation sites,which further grew into nanorods along the[001]direction.Increasing the concentration of HCl from 1 mol/L to 2mol/L could result in improved{001}preferred orientation.In addition,the obtained TiO2 film exhibited good in vitro bioactivity and can be adopted in 3D printing to produce porous titanium alloy,showing good general applicability.

关 键 词：水热法 高能晶面 金红石 生物活性 

分 类 号：TG146[金属学及工艺—金属材料]