Bio-inspired superhydrophobic surface based on hierarchical periodic surface structures of titanium by ultrafast laser

Hexiang Zhang

doi:10.1117/12.3006756

26 September 2023 Bio-inspired superhydrophobic surface based on hierarchical periodic surface structures of titanium by ultrafast laser

Hexiang Zhang

Author Affiliations +

Proceedings Volume 12793, International Conference on Mechatronics and Intelligent Control (ICMIC 2023); 127931P (2023) https://doi.org/10.1117/12.3006756
Event: International Conference on Mechatronics and Intelligent Control (ICMIC2023), 2023, Wuhan, China

Abstract

Metallic materials are widely used in various Industrial scenarios but they often suffer from different issues such as icing, corrosion, and damage, which negatively impact the safety and performance of equipment. Superhydrophobic materials, characterized by an apparent contact angle greater than 150° have been extensively studied as potential solutions to these problems. This paper introduces the basic theory of surface wettability, discusses applications of metallic surfaces and two main strategies for obtaining superhydrophobic surfaces. Inspired by the structure of dragonfly wings, we present an experimental method using a Ti:sapphire ultrafast laser system to fabricated superhydrophobic surfaces on TC4 titanium alloy samples. Scanning electron microscopy (SEM) and energy dispersive spectrometer (EDS) analysis reveal the ultrafast laser pulse can induce micro-scale groove structures and nano-scale laser induced periodic surface structures (LIPSS) on the morphology of titanium and will cause a significant change in the surface chemistry. The resulting superhydrophobic behavior can be attributed to a combination of surface roughness and low surface energy, which has potential applications in fields such as self-cleaning surfaces, microfluidics, and anti-corrosion coatings

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Hexiang Zhang "Bio-inspired superhydrophobic surface based on hierarchical periodic surface structures of titanium by ultrafast laser", Proc. SPIE 12793, International Conference on Mechatronics and Intelligent Control (ICMIC 2023), 127931P (26 September 2023); https://doi.org/10.1117/12.3006756

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KEYWORDS

Titanium

Ultrafast lasers

Scanning electron microscopy

Liquids

Alloys

Solids

Surface roughness

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