Journal
COATINGS
Volume 10, Issue 6, Pages -Publisher
MDPI
DOI: 10.3390/coatings10060587
Keywords
fs-laser; surface texturing; Al2024; anti-icing; wettability; superhydrophobicity
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Funding
- Italian Ministry of Education, University and Research (MIUR) [AIM184902B-1-ATT1]
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Ice formation is a serious issue in many fields, from energy to aerospace, compromising the devices' efficiency and security. Superhydrophobicity has been demonstrated to be correlated to the anti-icing properties of surfaces. However, fabricating surfaces with robust water repellence properties also at subzero temperature is still a great challenge. In this work, femtosecond laser (fs-laser) texturing is exploited to produce superhydrophobic surfaces with anti-icing properties on Al2024, an aluminum alloy of great interest in cold environments, in particular for aircraft production. Our textured substrates present self-cleaning properties and robust water repellency at subzero temperatures. Moreover, outstanding anti-icing properties are achieved on the textured surfaces at -20 degrees C, with water droplets bouncing off the surface before freezing.
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