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DIRECTED
ENERGY
PROFESSIONAL
SOCIETY
Abstract: 25-Symp-185
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UNCLASSIFIED, PUBLIC RELEASE
High-power femtosecond laser functionalized materials for directed energy applications
Here, a high-power femtosecond laser surface patterning technology is employed to render metallic surfaces superhydrophobic with excellent anti-corrosion, anti-icing, and low observability properties. The laser patterning permanently alters the intrinsic wetting property by creating sustainable hierarchical micro/nanostructures. A study on laser scanning speed, laser power, and repetition rate was conducted to optimize the superhydrophobic characteristics. The optimal laser parameters resulted in a superhydrophobic surface with a high contact angle (> 150 deg.), a small sliding angle (< 10 deg.), low light absorption (< 20%) in the visible wavelengths, and excellent anti-corrosion and anti-icing effects. This approach has the potential to revolutionize anti-corrosion, anti-icing, and low observability treatments in directed-energy applications.
UNCLASSIFIED, PUBLIC RELEASE
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