SUPERHYDROPHOBIC COPPER SURFACES BY SHOT PEENING AND CHEMICAL TREATMENT

H. Mojiri Forooshani (), M. Aliofkhazraei and A. Sabour Rouhaghdam
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H. Mojiri Forooshani: Department of Materials Science, Faculty of Engineering, Tarbiat Modares University, Tehran, P. O. Box 14115-143, Iran
M. Aliofkhazraei: Department of Materials Science, Faculty of Engineering, Tarbiat Modares University, Tehran, P. O. Box 14115-143, Iran
A. Sabour Rouhaghdam: Department of Materials Science, Faculty of Engineering, Tarbiat Modares University, Tehran, P. O. Box 14115-143, Iran

Surface Review and Letters (SRL), 2017, vol. 24, issue 07, 1-6

Abstract: In this paper, superhydrophobic surfaces are developed on polycrystalline copper using a combination of mechanical and chemical treatments by shot peening, dislocation etching and stearic acid treatment. The key point in this combined approach is the fabrication of a dislocation forest by shot peening. These sites were dissolved by etching, and hierarchical structures were fabricated. When these etched surfaces are treated by stearic acid, which has low surface energy, they become superhydrophobic with contact angle more than 150∘. Because of the superior properties and low costs involved with this method, it is expected to be widely used in the industry to fabricate superhydrophobic surfaces.

Keywords: Atomic force microscopy; dislocation etching; FTIR; shot peening; superhydrophotic surfaces (search for similar items in EconPapers)
Date: 2017
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DOI: 10.1142/S0218625X17500937

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