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Effect of SiO2 nano‐particulates on corrosion behaviour of Ni‐W/SiO2 nanocomposite coatings

Yingwu Yao (School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, People's Republic of China)

Anti-Corrosion Methods and Materials

ISSN: 0003-5599

Article publication date: 13 November 2007

605

Abstract

Purpose

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This paper aims to study the effect of SiO2 nano‐particulates on the corrosion behaviour of Ni‐W/SiO2 nanocomposite coatings.

Design/methodology/approach

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Weight loss measurements, electrochemical measurements and scanning electron microscope were used to study the corrosion behaviour of Ni‐W/SiO2 nanocomposite coatings in NaCl solution.

Findings

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The incorporation of SiO2 nano‐particulates into the Ni‐W alloy matrix significantly increased the corrosion resistance. The improvement in corrosion resistance was due to the SiO2 nano‐particulates acting as physical barriers to the corrosion process by filling in crevices, gaps and microscopic holes on the surface of the Ni‐W alloy.

Originality/value

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This study highlights the use of nano‐particulates for the control of Ni‐W alloy coating corrosion and opens a new route for industry in the anti‐corrosion field.

Keywords

Citation

Yao, Y. (2007), "Effect of SiO2 nano‐particulates on corrosion behaviour of Ni‐W/SiO2 nanocomposite coatings", Anti-Corrosion Methods and Materials, Vol. 54 No. 6, pp. 336-340. https://doi.org/10.1108/00035590710833484

Publisher

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Emerald Group Publishing Limited

Copyright © 2007, Emerald Group Publishing Limited

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