期刊
CRYSTAL RESEARCH AND TECHNOLOGY
卷 53, 期 12, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/crat.201800138
关键词
anodizing method; biomaterials; electrochemical impedance spectroscopy; titanium alloy; wettability
In this work, TiO2 layers are synthetized on Ti6Al4V alloy substrate by electrochemical anodizing process in fluoride-containing alkaline electrolytes and under different applied voltages (10, 20, and 30 V). The scanning electron microscopy (SEM) reveals a nearly regular and vertical alignment of TiO2 nanotubes (approximate to 80-100 nm) for specimen treated at 20 V and an agglomerate of particles with no particular orientations for those specimens treated at 10 and 30 V. The X-ray diffraction (XRD) indicates the formation of mixed phases of anatase and rutile. Wettability measurements exhibit hydrophilic and superhydrophilic surfaces, according to the anodization parameters. The electrochemical impedance spectroscopy (EIS), performed in a simulated body fluid (Hank's solution), reveals an increase in corrosion resistance for a bias potential of 20 V (262 k omega) owing to the evolution in TiO2-layer thickness, and then decreases for higher anodizing potential values due to the chemical dissolution of the obtained layer.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据