An Easy Approach for Obtaining Superhydrophobic Surfaces and their Applications

Amani Khaskhoussi; Luigi Calabrese; Edoardo Proverbio

doi:10.4028/www.scientific.net/KEM.813.37

Paper Titles

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Forming Process during Electron Beam Surfi-Sculpt^TM on Ti-6Al-4V Alloy
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The Impact of Formation of Oxide Layer on the Piston Crown Using Micro - Arc Oxidation on the Characteristics of the Spark Ignition Engine
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An Easy Approach for Obtaining Superhydrophobic Surfaces and their Applications
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Nanocrystallisation of Nickel Free High Nitrogen Austenitic Stainless Steel through Ultrasonic Shot Peening
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Modification of the Mechanical Properties of Vitreous Enameled Aluminium Substrate Adding Graphene Flakes
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Experimental Study of Laser Texturing Processes on the Lubricant Retention of Carbide (WC-Co) Surfaces
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Influence of Applied CrN+WC/C and WC/C Coatings on the Cavitation Wear Processes of Constructional Elements
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HomeKey Engineering MaterialsKey Engineering Materials Vol. 813An Easy Approach for Obtaining Superhydrophobic...

An Easy Approach for Obtaining Superhydrophobic Surfaces and their Applications

Abstract:

Three different methods were used to obtain nature-inspired superhydrophobic surfaces on aluminum alloys: short-term treatment with boiling water, HF/HCl and HNO₃/HCl concentrated solution etching. Afterwards a thin octadecylsilane film was deposited on all pre-treated surfaces. The surface morphology analysis showed that each method allow to obtain a specific dual nano/micro-structure. The corresponding water contact angles ranged from 160° to nearly 180°. The adhesion force between the water droplets and superhydrophobic surfaces were evaluated. The specimen etched with HF/HCl acid mixture solution showed the lowest adhesion. However, the boiling water treatment sample was characterized by the highest adhesion. Furthermore, the relationship between hydrophobic behavior and surface morphology was discussed compressively. In addition, the electrochemical measurements show that the different superhydrophobic surfaces have an excellent anti-corrosion performance evidencing promising results suitable to obtain large-scale nature-inspired superhydrophobic surfaces for several industrial applications.

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Periodical:

Key Engineering Materials (Volume 813)

Pages:

37-42

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.813.37

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Online since:

July 2019

Authors:

Amani Khaskhoussi*, Luigi Calabrese, Edoardo Proverbio

Keywords:

Adhesion Force, Aluminum Alloy, Coating, Corrosion Resistance, Superhydrophobic Surface

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