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Updated: Feb 9, 2026

Potentiodynamic Corrosion Testing
Published on: September 4, 2016
Corrosion Performance of Nano-ZrO₂ Modified Coatings in Hot Mixed Acid Solutions
Wenhua Xu1,2, Zhenyu Wang3, En-Hou Han4
1Key Laboratory of Nuclear Materials and Safety Assessment, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China. whxu13b@imr.ac.cn.
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.
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