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Materials 2018, 11(6), 934; https://doi.org/10.3390/ma11060934

Corrosion Performance of Nano-ZrO2 Modified Coatings in Hot Mixed Acid Solutions

1
Key Laboratory of Nuclear Materials and Safety Assessment, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
2
University of Chinese Academy of Sciences, Beijing 100049, China
3
School of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China
*
Author to whom correspondence should be addressed.
Received: 5 May 2018 / Revised: 29 May 2018 / Accepted: 30 May 2018 / Published: 1 June 2018
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Abstract

A nano-ZrO2 modified coating system was prepared by incorporation of nano-ZrO2 concentrates into phenolic-epoxy resin. The corrosion performance of the coatings was evaluated in hot mixed acid solution, using electrochemical methods combined with surface characterization, and the effects of nano-ZrO2 content were specially focused on. The results showed that 1% and 3% nano-ZrO2 addition enhanced the corrosion resistance of the coatings, while 5% nano-ZrO2 addition declined it. The coating with 3% nano-ZrO2 presented the minimum amount of species diffusion, the lowest average roughness (5.94 nm), and the highest C/O ratio (4.55) and coating resistance, and it demonstrated the best corrosion performance among the coating specimens. View Full-Text
Keywords: nano coatings; EIS; corrosion performance; acid corrosion nano coatings; EIS; corrosion performance; acid corrosion
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Xu, W.; Wang, Z.; Han, E.-H.; Wang, S.; Liu, Q. Corrosion Performance of Nano-ZrO2 Modified Coatings in Hot Mixed Acid Solutions. Materials 2018, 11, 934.

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