Spontaneous dewetting transitions of droplets during icing & melting cycle
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Abstract
Anti-icing superhydrophobic surfaces have been a key research topic due to their potential application value in aviation, telecommunication, energy, etc. However, superhydrophobicity is easily lost during icing & melting cycles, where the water-repellent Cassie-Baxter state turns to the sticky Wenzel state. The reversible transition during icing & melting cycle without external assistance is challenging but vital for reliable anti-icing superhydrophobic performance, such a topic has rarely been reported. Here we demonstrate a spontaneous Wenzel to Cassie-Baxter dewetting transition during icing & melting cycle on well-designed superhydrophobic surfaces. Bubbles in ice droplets rapidly impact the micro-nano…
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Authors
8Topics & keywords
Topics
Keywords
- Dewetting
- Icing
- Wetting
- Materials science
- Nanotechnology
- Phase transition
- Chemical physics
- Mechanics
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