Investigation on synthesis, characterisation and electrochemical properties of TiO2–Al2O3 nanocomposite thin film coated on 316 L stainless steel
Investigation on synthesis, characterisation and electrochemical properties of TiO2–Al2O3 nanocomposite thin film coated on 316 L stainless steel
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DOI：
10.1016/j.surfcoat.2011.06.004
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发表时间：
2011-09
影响因子：
5.4
通讯作者：
H. Vaghari;Z. Sadeghian;M. Shahmiri
中科院分区：
文献类型：
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作者：
H. Vaghari;Z. Sadeghian;M. Shahmiri
采用溶胶-凝胶法和浸渍法在316L不锈钢表面制备了tio2 - al2o3纳米复合涂层。制备了不同成分和厚度的薄膜。采用同步热分析仪（STA）、x射线衍射仪（XRD）、扫描电镜（SEM）、原子力显微镜（AFM）和傅里叶变换红外（FTIR）等仪器对样品的物相组成和形貌进行了分析。通过电化学极化测试，评价了涂层在0.5M NaCl中的耐蚀性。根据电化学极化结果，三层TiO2-20wt。% al2o3纳米复合膜具有较好的耐蚀性。
TiO2–Al2O3nanocomposite coatings have been applied on the surface of 316L stainless steel by a sol–gel process and dip-coating technique. The film with different compositions and thickness have been prepared. The phase composition and morphology of samples has been analyzed by Simultaneous Thermal Analyzer (STA), X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM), Atomic Force Microscopy (AFM) and Fourier Transform Infrared (FTIR) instruments. The corrosion resistance of the coatings in 0.5M NaCl was evaluated by electrochemical polarization measurement. According to electrochemical polarization results, three-layer TiO2–20wt.% Al2O3nanocomposite film, shows the best corrosion resistance.