Fabrication of Micro-Nano Roughened Surface with Superhydrophobic Character on an Aluminum Alloy Surface by a Facile Chemical Etching Process

Attar MR, Khajavani E, Hosseinpour S, Davoodi A (2019)

Publication Language: English

Publication Type: Journal article, Original article

Publication year: 2019

Journal

Bulletin of Materials Science Springer Verlag (Germany) / Indian Academy of Sciences / Indian Academy of Sciences, Springer

Article Number: 33

Journal Issue: 43

URI: https://link.springer.com/article/10.1007/s12034-019-1998-7

DOI: 10.1007/s12034-019-1998-7

Abstract

In the present study, we have fabricated a superhydrophobic surface on aluminum alloy 2024 through a simple immersion chemical etching method in hydrochloric acid followed by a functionalization step in stearic acid solution. The impact of etching time on water contact angle was investigated and a contact angle of ~167° was reached on the superhydrophobic surface which was etched for four minutes. Morphology of the surface was evaluated by scanning electron microscopy and the surface chemical analysis was performed by energy dispersive X-ray spectroscopy and Raman spectroscopy. We show that the fabricated superhydrophobic samples can repel other liquids than water. We also demonstrate the self-cleaning properties of the fabricated samples using graphite particles. Ultimately, we assessed the corrosion resistance properties of the fabricated surfaces using potentiodynamic polarization method. Superhydrophobic surface exhibited increased corrosion potential and polarization resistance along with reduced corrosion current, all of which are indicative of a significant improvement in corrosion performance of the superhydrophobic surface in comparison with typical aluminum 2024. The cheap and facile superhydrophobic surface fabrication method presented in this study can be applied to large scale samples with no need for electricity or expensive raw materials.

Authors with CRIS profile

Saman Hosseinpour Lehrstuhl für Feststoff- und Grenzflächenverfahrenstechnik

Involved external institutions

Ferdowsi University of Mashhad IR Iran, Islamic Republic of (IR)

How to cite

APA:

Attar, M.R., Khajavani, E., Hosseinpour, S., & Davoodi, A. (2019). Fabrication of Micro-Nano Roughened Surface with Superhydrophobic Character on an Aluminum Alloy Surface by a Facile Chemical Etching Process. Bulletin of Materials Science, 43. https://dx.doi.org/10.1007/s12034-019-1998-7

MLA:

Attar, Mohammad Reza, et al. "Fabrication of Micro-Nano Roughened Surface with Superhydrophobic Character on an Aluminum Alloy Surface by a Facile Chemical Etching Process." Bulletin of Materials Science 43 (2019).

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