期刊
SILICON
卷 13, 期 7, 页码 2195-2207出版社
SPRINGER
DOI: 10.1007/s12633-020-00721-w
关键词
Sol-gel process; SiO2; TiO2; ZnO; ZrO2; Nanocomposite coatings; Anti-scratch
Hybrid nanocomposite coatings containing SiO2, TiO2, ZnO, and ZrO(2) particles were synthesized and characterized; the nanometer-sized inorganic particles had uniform distribution; coatings with nanozirconia exhibited high scratch resistance.
Hybrid nanocomposite coatings containing SiO2, TiO2, ZnO, and ZrO(2)particles were synthesized based on sol-gel precursors, including tetraethoxysilane (TEOS), 3glycidoxypropyl trimethoxysilane (GPTMS), tetra(n-butylorthotitanate) (TBT), zinc acetate dihydrate, and zirconium chloride (IV). The nanocomposites were characterized using FTIR, SEM, DLS, and EDAX methods. Results indicated that the size of the inorganic particles was in the range of nanometer (283.3, 163.5, 99.2, and 2.5 nm for ZrO2, SiO2, ZnO, and TiO2, respectively) with a very uniform distribution and dispersion. Hybrid nanocomposite coatings containing different amounts of nanozirconia were prepared on a 30-mu m thick steel sheet for the subsequent scratch test. The highest scratch resistance of 3950 g was associated with the coating containing 0.0015 g nanozirconia. The electrochemical properties of the composite coating were investigated using potentiodynamic polarization (TOEFL) and electrochemical impedance spectroscopy (EIS). The results showed that the corrosion resistance of the steel sheet coated with zirconia composite is much better than that without the coating. The ZrO(2)composite coating also showed better corrosion inhibition and improving surface resistance against mechanically induced scratches, without any trade-off in transparency.
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