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Sol–gel preparation and corrosion properties of Zn–SiO2 nanocomposite thin film

  • Original Paper: Nano-structured materials (particles, fibers, colloids, composites, etc.)
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Abstract

In this study, a novel nanocomposite thin film of Zn–SiO2 is considered. The thin film is a viable alternative for higher abrasion-resistant coatings. DLS technique revealed that the nanoparticle size is to be below 10 nm, and FE-SEM showed particle size to be below 17 nm in the obtained coating. The coating was found to be highly adhesive with an amorphous structure and hardness value above 1000HV. Corrosion resistance studies using linear polarization technique revealed that this unique nanocomposite has a lower corrosion rate than hot-dip galvanized steel at higher positive potentials. A conclusive mechanism for corrosion and erosion improvement has been proposed.

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Acknowledgments

The authors would like to thank the Research council of Sharif University for partial support of the work. We also thank Mr. Farshad Salehi at the Department of Materials Science and Engineering for his kind assistance in conducting experiments. Special thanks also go to Ms. Parisa Gholamnezhad, Chemistry Department, for her assistance in data analysis.

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Authors and Affiliations

  1. Faculty of Engineering and Science, Sharif University of Technology, International Campus, Kish, Iran

    O. Razavizadeh & M. Ghorbani

  2. Institute for Nano-science and Nanotechnology, Sharif University of Technology, P.O. Box 14588-89694, Tehran, Iran

    M. Ghorbani

  3. Materials Science and Engineering Department, Sharif University of Technology, P.O. Box 11365-9466, Tehran, Iran

    O. Razavizadeh & M. Ghorbani

Authors
  1. O. Razavizadeh
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  2. M. Ghorbani
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Correspondence to O. Razavizadeh.

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Razavizadeh, O., Ghorbani, M. Sol–gel preparation and corrosion properties of Zn–SiO2 nanocomposite thin film. J Sol-Gel Sci Technol 79, 133–143 (2016). https://doi.org/10.1007/s10971-016-4016-1

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  • DOI: https://doi.org/10.1007/s10971-016-4016-1

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