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
- Laser & Optoelectronics Progress
- Vol. 57, Issue 1, 011408 (2020)
Fig. 1. Experimental setup for fabricating microtexture and processed titanium sample. (a) Experimental setup; (b) titanium sample
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
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
Fig. 4. Superhydrophilicity before aging and hydrophobicity after aging of fabricated titanium microstructure. (a) Superhydrophilicity; (b) hydrophobicity
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
Fig. 6. Comparison of different surface contact angles
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 2. Processing parameters of fiber laser ablation for fabricating titanium microstructure with superhydrophilicity
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Table 3. Element contents in different regions of untreated and microstructure sample surfaces
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