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Chinese Journal of Lasers, Volume. 47, Issue 4, 402012(2020)

Fabrication and Droplet Impact Performance of Superhydrophobic Surfaces Developed Using Nanosecond Lasers

Zhou Peiyang1, Peng Yaozheng1, Huang Zeming1, Ouyang Ziqing1, Long Jiangyou1, and Xie Xiaozhu1,2,3、*
Author Affiliations
  • 1Laser Micro/Nano Processing Lab, School of Electromechanical Engineering,Guangdong University of Technology, Guangzhou, Guangdong 510006, China
  • 2State Key Laboratory of Precision Electronic Manufacturing Technology and Equipment, School ofElectromechanical Engineering, Guangdong University of Technology, Guangzhou, Guangdong 510006, China
  • 3Department of Experiment Teaching, Guangdong University of Technology,Guangzhou, Guangdong 510006, China
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    Schematics of laser processing system and drop impact experiment. (a) Laser processing system; (b) drop impact experiment

    Fig. 1. Schematics of laser processing system and drop impact experiment. (a) Laser processing system; (b) drop impact experiment

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    Surface morphology of typical structures prepared with laser with different pulse widths (the laser pulse energy, laser scanning speed and laser scanning interval are 160 μJ,10 mm/s and 10 μm, respectively). (a1)--(d1) SEM images; (a2)--(d2) high-magnification of SEM images; (a3)--(d3) surface 3D height map of the structure; (a4)--(d4) cross-section profiles along the black dotted lines in the 3D height map

    Fig. 2. Surface morphology of typical structures prepared with laser with different pulse widths (the laser pulse energy, laser scanning speed and laser scanning interval are 160 μJ,10 mm/s and 10 μm, respectively). (a1)--(d1) SEM images; (a2)--(d2) high-magnification of SEM images; (a3)--(d3) surface 3D height map of the structure; (a4)--(d4) cross-section profiles along the black dotted lines in the 3D height map

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    Sliding angle and adhesive force of different samples

    Fig. 3. Sliding angle and adhesive force of different samples

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    Snapshots of impacting droplets on typical samples surface

    Fig. 4. Snapshots of impacting droplets on typical samples surface

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    Solid-liquid contact times of each sample at droplet impact with three different Weber numbers

    Fig. 5. Solid-liquid contact times of each sample at droplet impact with three different Weber numbers

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    Zhou Peiyang, Peng Yaozheng, Huang Zeming, Ouyang Ziqing, Long Jiangyou, Xie Xiaozhu. Fabrication and Droplet Impact Performance of Superhydrophobic Surfaces Developed Using Nanosecond Lasers[J]. Chinese Journal of Lasers, 2020, 47(4): 402012

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    Paper Information

    Category: laser manufacturing

    Received: Nov. 20, 2019

    Accepted: --

    Published Online: Apr. 8, 2020

    The Author Email: Xiaozhu Xie (xiaozhuxie@gdut.edu.cn)

    DOI:10.3788/CJL202047.0402012

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology