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Related Experiment Video

Updated: Jun 25, 2025

Fabrication of Superhydrophobic Metal Surfaces for Anti-Icing Applications
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Exploiting intermediate wetting on superhydrophobic surfaces for efficient icing prevention.

Samaneh Keshavarzi1, Gelareh Momen1, Patric Eberle2

  • 1Department of Applied Sciences, University of Québec in Chicoutimi, Chicoutimi, Québec, Canada.

Journal of Colloid and Interface Science
|May 22, 2024
PubMed
Summary

Superhydrophobic surfaces delay ice nucleation by optimizing droplet wetting. A critical wetting fraction in microstructures minimizes solid-liquid contact, enhancing anti-icing performance for engineered surfaces.

Keywords:
Heterogeneous nucleationIce nucleation timeIntermediate wettingNucleation rateSurface topographySurface wettability

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Area of Science:

  • Materials Science
  • Surface Science
  • Physics

Background:

  • Superhydrophobic surfaces are crucial for preventing ice formation in technological systems.
  • Real-world applications involve droplet penetration into microstructures, affecting anti-icing properties.
  • The impact of intermediate wetting phenomena on ice nucleation is not well understood.

Purpose of the Study:

  • To investigate how engineered microstructures influence wetting fraction.
  • To explore the effects of intermediate wetting on ice nucleation delay.
  • To guide the design of advanced anti-icing surfaces.

Main Methods:

  • Utilized engineered micropillar structures to control wetting fraction.
  • Investigated intermediate wetting behavior under supercooling conditions.
  • Combined experimental, theoretical, and simulation approaches.

Main Results:

  • Wetting fraction increased with supercooling, partly due to condensation.
  • A critical wetting fraction at -10/-20°C maximized ice nucleation delays.
  • Experimental findings aligned with theoretical predictions.

Conclusions:

  • Optimizing wetting fraction in microstructures is key for anti-icing.
  • A critical wetting condition minimizes solid-liquid contact area.
  • Established physical relationships for designing ice-resistant surfaces.