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Laser & Optoelectronics Progress, Volume. 57, Issue 1, 011408(2020)

Wettability of Nanosecond Laser-Induced Titanium Oxide Alloys and Coatings

Chenhua Liu1,2, Xijing Zhu1,2, Xiangmeng Li1,2、*, and Yutian Zhao1,2
Author Affiliations
  • 1Shanxi Key Laboratory of Advanced Manufacturing Technology, North University of China, Taiyuan, Shanxi 0 30051, China
  • 2School of Mechanical Engineering, North University of China, Taiyuan, Shanxi 0 30051, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (10)
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    References (14)
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    Figures & Tables(10)
    Experimental setup for fabricating microtexture and processed titanium sample. (a) Experimental setup; (b) titanium sample

    Fig. 1. Experimental setup for fabricating microtexture and processed titanium sample. (a) Experimental setup; (b) titanium sample

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    SEM images of superwetting titanium microstructures fabricated by fiber laser ablation with line spacing of 0.03 mm. (a)(b) Pulse power is 12 W;(c)(d) pulse power is 16 W

    Fig. 2. SEM images of superwetting titanium microstructures fabricated by fiber laser ablation with line spacing of 0.03 mm. (a)(b) Pulse power is 12 W;(c)(d) pulse power is 16 W

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    SEM images of titanium microstructures fabricated by fiber laser ablation with pulse power of 16 W. (a) Line spacing is 0.07 mm; (b) partially enlarged image with line spacing of 0.07 mm; (c) line spacing is 0.2 mm; (d) line spacing is 0.4 mm

    Fig. 3. SEM images of titanium microstructures fabricated by fiber laser ablation with pulse power of 16 W. (a) Line spacing is 0.07 mm; (b) partially enlarged image with line spacing of 0.07 mm; (c) line spacing is 0.2 mm; (d) line spacing is 0.4 mm

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    Superhydrophilicity before aging and hydrophobicity after aging of fabricated titanium microstructure. (a) Superhydrophilicity; (b) hydrophobicity

    Fig. 4. Superhydrophilicity before aging and hydrophobicity after aging of fabricated titanium microstructure. (a) Superhydrophilicity; (b) hydrophobicity

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    Energy diffraction spectra (EDS) of untreated and microstructure sample surfaces. (a) SEM image of untreated sample; (b) EDS spectrum at spot 1 of untreated sample; (c) SEM image of microstructure sample; (d) EDS spectrum at spot 1 of microstructure sample

    Fig. 5. Energy diffraction spectra (EDS) of untreated and microstructure sample surfaces. (a) SEM image of untreated sample; (b) EDS spectrum at spot 1 of untreated sample; (c) SEM image of microstructure sample; (d) EDS spectrum at spot 1 of microstructure sample

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    Comparison of different surface contact angles

    Fig. 6. Comparison of different surface contact angles

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    "Lotus effect" on surface of titanium metal microtextured coating. (a) Tilted sample; (b) drop rolling down; (c) final state of drop

    Fig. 7. "Lotus effect" on surface of titanium metal microtextured coating. (a) Tilted sample; (b) drop rolling down; (c) final state of drop

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    • Table 1. Processing parameters for fabricating hydrophilic titanium microstructure with fiber laser

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      Table 1. Processing parameters for fabricating hydrophilic titanium microstructure with fiber laser

      Sample No.Line space /mmScanning speed /(mm·s-1)Repetition frequency /kHzPulse power /W
      10.01808016
      20.0360804
      30.05408012
      40.0720808
      50.20604016
      60.40604016

    • Table 2. Processing parameters of fiber laser ablation for fabricating titanium microstructure with superhydrophilicity

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      Table 2. Processing parameters of fiber laser ablation for fabricating titanium microstructure with superhydrophilicity

      Sample No.Line space /mmScanning speed /(mm·s-1)Repetition frequency /kHzPulse power /W
      10.0360404
      20.0360408
      30.03604012
      40.03604016
      50.05604016
      60.07604016

    • Table 3. Element contents in different regions of untreated and microstructure sample surfaces

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      Table 3. Element contents in different regions of untreated and microstructure sample surfaces

      SampleAtom fraction /%
      TiON
      Flat-spot 183.274.3012.03
      Flat-spot 290.051.098.85
      Flat-spot 387.393.059.56
      Low-spot 164.2425.939.83
      Low-spot 275.2716.668.08
      Low-spot 375.687.8416.47
      High-spot 160.9529.119.94
      High-spot 273.0419.337.63
      High-spot 384.8610.814.34
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    Chenhua Liu, Xijing Zhu, Xiangmeng Li, Yutian Zhao. Wettability of Nanosecond Laser-Induced Titanium Oxide Alloys and Coatings[J]. Laser & Optoelectronics Progress, 2020, 57(1): 011408

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    Paper Information

    Category: Lasers and Laser Optics

    Received: Jul. 1, 2019

    Accepted: Jul. 15, 2019

    Published Online: Jan. 3, 2020

    The Author Email: Xiangmeng Li (2247587761@qq.com)

    DOI:10.3788/LOP57.011408

    Topics

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