• Infrared and Laser Engineering
  • Vol. 50, Issue 10, 20210023 (2021)
Juan Hong1,2, Yuan Kuai1, Kun Cheng1, Zexin Zhang1..., Feng Qian2,3, Jun Qian4, Rulong Chen4 and Honglie Shen2|Show fewer author(s)
Author Affiliations
  • 1College of Mechanical Engineering, Yancheng Institute of Technology, Yancheng 224051, China
  • 2College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 221110, China
  • 3Shenzhen Han's Photovoltaic Equipment Co., Ltd, Shenzhen 518103, China
  • 4Jiangsu Runergy Yueda PV Technology Co., Ltd, Yancheng 224000, China
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    DOI: 10.3788/IRLA20210023 Cite this Article
    Juan Hong, Yuan Kuai, Kun Cheng, Zexin Zhang, Feng Qian, Jun Qian, Rulong Chen, Honglie Shen. Numerical simulation and experimental study of multi-pulse laser cladding of B doped Si nano-film[J]. Infrared and Laser Engineering, 2021, 50(10): 20210023 Copy Citation Text show less
    Geometric model
    Fig. 1. Geometric model
    Distributions of three-dimensional temperature field at different moments (a) ; (b) 不同时刻下的三维温度场分布。(a) ;(b)
    Fig. 2. Distributions of three-dimensional temperature field at different moments (a) ; (b) 不同时刻下的三维温度场分布。(a) ;(b)
    Sketch map of node positions
    Fig. 3. Sketch map of node positions
    Different temperatures of the positions as the time change
    Fig. 4. Different temperatures of the positions as the time change
    Rate of temperature changes at different points. (a) Center of spot; (b) Point B at the edge of the laser beam
    Fig. 5. Rate of temperature changes at different points. (a) Center of spot; (b) Point B at the edge of the laser beam
    Three-dimensional temperature field distributions at different moments. (a) ; (b) ; (c) ; (d) ; (e) ; (f) 不同时刻下的三维温度场分布。(a) ; (b) ; (c) ; (d) ; (e) ; (f)
    Fig. 6. Three-dimensional temperature field distributions at different moments. (a) ; (b) ; (c) ; (d) ; (e) ; (f) 不同时刻下的三维温度场分布。(a) ; (b) ; (c) ; (d) ; (e) ; (f)
    Temperature at different locations changes with time. (a) Horizontal direction point A,B,C; (b) Vertical direction point C,D,E
    Fig. 7. Temperature at different locations changes with time. (a) Horizontal direction point ABC; (b) Vertical direction point CDE
    Influence of the number of pulses on the size of cladding layer
    Fig. 8. Influence of the number of pulses on the size of cladding layer
    Rate of temperature change at different locations changes with time. (a) Point A; (b) Point B
    Fig. 9. Rate of temperature change at different locations changes with time. (a) Point A; (b) Point B
    Cmparison with the characters of single and multi-pulse laser cladding of Si film. (a) Morphology of single pulse cladding of Si film; (b) Morphology of single pulse cladding after remove redundant Si film; (c) Morphology of muti-pulse cladding of Si film; (d) Morphology of muti-pulse cladding after remove redundant Si film; Morphology of back surface field form by (e) single pulse laser cladding and (f) muti-pulse laser cladding
    Fig. 10. Cmparison with the characters of single and multi-pulse laser cladding of Si film. (a) Morphology of single pulse cladding of Si film; (b) Morphology of single pulse cladding after remove redundant Si film; (c) Morphology of muti-pulse cladding of Si film; (d) Morphology of muti-pulse cladding after remove redundant Si film; Morphology of back surface field form by (e) single pulse laser cladding and (f) muti-pulse laser cladding
    B atoms concentration in Si substrate after laser doping measured by ECV
    Fig. 11. B atoms concentration in Si substrate after laser doping measured by ECV
    Material propertiesSolid stateLiquid state
    Thermal conductivity[17]k/W·m−1·K−1150125
    Specific heat capacity[17]$ {C}_{p}/ $J·kg−1·K−17001000
    Density[18]$ \rho / $kg·m−323292520
    Melting point $ {T}_{m}/ $K 1685
    Boiling point $ {T}_{v}/ $K 3538
    Reflectivity $ R $ ( $ {\lambda } $ = 532 nm)[19]0.3740.73
    Latent heat of fusion $ H\_s/ $kJ·kg−11415.4
    Table 1. Thermal physical parameters of matrix materials
    Juan Hong, Yuan Kuai, Kun Cheng, Zexin Zhang, Feng Qian, Jun Qian, Rulong Chen, Honglie Shen. Numerical simulation and experimental study of multi-pulse laser cladding of B doped Si nano-film[J]. Infrared and Laser Engineering, 2021, 50(10): 20210023
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