• High Power Laser and Particle Beams
  • Vol. 36, Issue 5, 055017 (2024)
Yankun Huo1,2, Wenyuan Liu1, Yajiao He1, Changfeng Ke1..., Libing Cai1, Xianchen Bai1 and Jun Cheng1|Show fewer author(s)
Author Affiliations
  • 1Northwest Institute of Nuclear Technology, Xi’an 710024, China
  • 2School of Materials Science and Engineering, Xi’an Jiaotong University, Xi’an 710049, China
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    DOI: 10.11884/HPLPB202436.230423 Cite this Article
    Yankun Huo, Wenyuan Liu, Yajiao He, Changfeng Ke, Libing Cai, Xianchen Bai, Jun Cheng. Two-stage microstructure on surface of vacuum polymer insulators[J]. High Power Laser and Particle Beams, 2024, 36(5): 055017 Copy Citation Text show less
    Schematic of the improvement, separation of the two-stage microstructure and the preparation process of the three microstructures
    Fig. 1. Schematic of the improvement, separation of the two-stage microstructure and the preparation process of the three microstructures
    Illustration of the flashover voltage test
    Fig. 2. Illustration of the flashover voltage test
    Preparation results of the three kinds of microstructures
    Fig. 3. Preparation results of the three kinds of microstructures
    Results of the flashover voltage test of the three kinds of microstructures
    Fig. 4. Results of the flashover voltage test of the three kinds of microstructures
    Secondary electron emission yield of the three kinds of microstructures
    Fig. 5. Secondary electron emission yield of the three kinds of microstructures
    Surface flashover suppression mechanism of different microstructures
    Fig. 6. Surface flashover suppression mechanism of different microstructures
    two-stage microstructuresurface micro groovesurface micro hole
    group 1depth 200 μm, 12 lines/5 mm, 5.5 μm 4%depth 200 μm, 12 lines/5 mm5.5 μm 4%
    group 2depth 200 μm, 12 lines/5 mm, 2.5 μm 6%depth 200 μm, 12 lines/5 mm2.5 μm 6%
    group 3depth 200 μm, 15 lines/5 mm, 5.5 μm 4%depth 200 μm, 15 lines/5 mm5.5 μm 4%
    group 4depth 200 μm, 15 lines/5 mm, 2.5 μm 6%depth 200 μm, 15 lines/5 mm2.5 μm 6%
    Table 1. List of the parameters of the three kinds of microstructures
    Yankun Huo, Wenyuan Liu, Yajiao He, Changfeng Ke, Libing Cai, Xianchen Bai, Jun Cheng. Two-stage microstructure on surface of vacuum polymer insulators[J]. High Power Laser and Particle Beams, 2024, 36(5): 055017
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