【摘 要】
：
Titanium has been widely applied in diversified fields,such as chemical,electrochemical,aerospace and biomedical industries,for its good protective thin oxide film on the surface.However,many papers i
【机 构】
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School of Materials and Chemical Engineering,Xi'an Technological University,Xi'an,710032,P.R.China
【出 处】
：
Fifth International Conference on Surface Engineering(第五届表面工
论文部分内容阅读
Titanium has been widely applied in diversified fields,such as chemical,electrochemical,aerospace and biomedical industries,for its good protective thin oxide film on the surface.However,many papers indicated that a flat metal surface on either micrometer or nanometer scale could strongly resist general corrosion and pitting corrosion,and the active metals,like iron,titanium and so on,were difficult to get a wide terrace with atomic scale flatness due to the coverage of ultra-thin (hydr)oxide film about a few nanometers thick.Recently atomically flat surface could be generated by electrochemical passivation treatment,but it was not enough to widely expand crystal flat structure on entire surface of passive films.In this paper,the titanium anodizations in 0.1 M sulfuric acid solution at different treated potentials and the effects of UV-irradiation on the anodized films were investigated by spectroscopic ellipsometry (SE),atomic force microscopy (AFM) and scanning tunneling microscopy (STM).
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