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Title: Stearic acid-coated superhydrophobic Fe2O3/Fe3O4 composite film on N80 steel for corrosion protection
Authors: Hu, Jun
He, Shijun
Wang, Zhen
Zhu, Jianbo
Wei, Liping
Chen, Zhong
Keywords: Engineering::Materials
Issue Date: 2018
Source: Hu, J., He, S., Wang, Z., Zhu, J., Wei, L., & Chen, Z. (2019). Stearic acid-coated superhydrophobic Fe2O3/Fe3O4 composite film on N80 steel for corrosion protection. Surface and Coatings Technology, 359, 47-54. doi:10.1016/j.surfcoat.2018.12.040
Journal: Surface and Coatings Technology
Abstract: Fe2O3/Fe3O4 composite films with micro-nanostructure are prepared on the N80 steel surface by a two-step hydrothermal method, followed by heat treatment. The prepared dual-scale film, after the modification with stearic acid, shows superhydrophobic property with a water contact angle of 159.6° and sliding angle of 2.2°. The greatly decreased corrosion current density and the largely increased impedance indicate the superhydrophobic surface can protect steel sample well from corrosion. Furthermore, the superhydrophobic Fe2O3/Fe3O4 composite film also showed excellent self-cleaning ability and was able to maintain its anti-wettability when immersed in water. Our work finds that the concentration of NaOH in the second hydrothermal method is a critical factor for the morphology of the Fe2O3 film and the annealing treatment plays a significant role in realizing the superhydrophobic stearic acid coated micro-nanostructure Fe2O3/Fe3O4 composite.
ISSN: 0257-8972
DOI: 10.1016/j.surfcoat.2018.12.040
Rights: © 2018 Elsevier B.V. All rights reserved. This paper was published in Surface and Coatings Technology and is made available with permission of Elsevier B.V.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:MSE Journal Articles


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