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Scalable Wettability Modification of Aluminum Surface through Single-Shot Nanosecond Laser Processing
Chi-Vinh Ngo1, Yu Liu1,2, Wei Li1,2
1GPL Photonics Laboratory, State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China.
Nanomaterials (Basel, Switzerland)
|April 28, 2023
Summary
Researchers developed a fast, single-shot laser technique to create superhydrophobic aluminum surfaces. This method offers durable anti-fouling, anti-corrosion, and anti-icing properties for various applications.
Area of Science:
- Materials Science
- Surface Engineering
- Nanotechnology
Background:
- Superhydrophobic surfaces offer significant advantages in anti-fouling, anti-corrosion, and anti-icing applications.
- Conventional methods for creating these surfaces often involve lengthy laser processing or additional chemical treatments.
Purpose of the Study:
- To develop a facile and rapid laser-based technique for converting hydrophilic metal surfaces to superhydrophobic.
- To investigate the effect of laser parameters on surface wettability and explore the underlying conversion mechanism.
Main Methods:
- Utilized single-shot nanosecond laser irradiation to modify aluminum surfaces.
- Investigated the influence of incident laser energy on the resulting surface structures and wettability.
- Evaluated the long-term durability and functional properties (self-cleaning, water adhesion control) of the treated surfaces.
Main Results:
- Achieved conversion of aluminum surfaces from hydrophilic to hydrophobic and superhydrophobic states with single-shot laser pulses.
- Demonstrated that the superhydrophobic properties persisted for at least six months.
- Observed a self-cleaning effect and controlled water adhesion on the laser-processed surfaces.
Conclusions:
- Single-shot nanosecond laser irradiation is an effective and rapid method for fabricating superhydrophobic aluminum surfaces.
- The technique offers a scalable and efficient approach for producing surfaces with enhanced properties for diverse applications.
- The developed method overcomes the time limitations of traditional surface processing techniques.
