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Related Experiment Video

Updated: Apr 10, 2026

Fabrication of Superhydrophobic Metal Surfaces for Anti-Icing Applications

Fabrication of Superhydrophobic Metal Surfaces for Anti-Icing Applications

Published on: August 15, 2018

Impurity-Induced Localized Superhydrophobicity Breakdown.

Youhua Jiang^1,2, Baixue Li^1,2, Alexander Oron²

¹Department of Mechanical Engineering (Robotics), Guangdong Technion - Israel Institute of Technology, Shantou, Guangdong 515063, China.

|April 8, 2026

Summary

This summary is machine-generated.

A new mechanism for superhydrophobicity breakdown is revealed. Droplet impact on a sphere causes cavity collapse, inducing a jet that disrupts the superhydrophobic surface.

Keywords:

cavity collapse droplet impact jet formation superhydrophobicity wetting transition

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Preparation and High-temperature Anti-adhesion Behavior of a Slippery Surface on Stainless Steel

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Last Updated: Apr 10, 2026

Fabrication of Superhydrophobic Metal Surfaces for Anti-Icing Applications

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Rendering SiO2/Si Surfaces Omniphobic by Carving Gas-Entrapping Microtextures Comprising Reentrant and Doubly Reentrant Cavities or Pillars

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Preparation and High-temperature Anti-adhesion Behavior of a Slippery Surface on Stainless Steel

Preparation and High-temperature Anti-adhesion Behavior of a Slippery Surface on Stainless Steel

Published on: March 29, 2018

Area of Science:

Fluid dynamics
Surface science
Materials science

Background:

Superhydrophobicity is crucial for many interface applications.
Understanding superhydrophobicity breakdown is key to controlling these phenomena.

Purpose of the Study:

To identify a novel mechanism responsible for the breakdown of superhydrophobicity.
To investigate the role of droplet-sphere interaction in superhydrophobicity failure.

Main Methods:

Experimental setup involving droplet impact onto a sphere positioned on a superhydrophobic surface.
High-speed visualization to capture droplet dynamics and interface behavior.
Analysis of impact speed, droplet-sphere offset, and resulting surface wetting.

Main Results:

A reduced impact speed is required for superhydrophobicity breakdown when a sphere is present.
An air cavity forms at the sphere's bottom due to inertial forces overcoming capillary resistance.
Cavity collapse generates a jet impacting the substrate, leading to superhydrophobicity loss.

Conclusions:

The study uncovers a previously unknown mechanism for superhydrophobicity breakdown.
Cavity collapse-induced jetting is identified as the primary cause of failure in this specific scenario.
Findings offer insights into controlling liquid-solid interactions on superhydrophobic surfaces.