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Laser & Optoelectronics Progress, Volume. 59, Issue 7, 0724001(2022)

Process Optimization of CNTs/Cu Composite Coating Prepared by Laser-Assisted Low Pressure Cold Spraying

Chaowei Jiang1, Bo Liu1, Yunyi Zhang1, Jingyong Sun2,3,4, Bo Li2,3,4、*, Qunli Zhang2,3,4, and Jianhua Yao2,3,4
Author Affiliations
  • 1Maintenance Company, State Grid Ningxia Electric Power Co.Ltd., Yinchuan , Ningxia 750001, China
  • 2Institute of Laser Advanced Manufacturing, Zhejiang University of Technology, Hangzhou , Zhejiang 310023, China
  • 3Collaborative Innovation Center of High-End Laser Manufacturing Equipment Co-Sponsored by Ministry and Province, Hangzhou , Zhejiang 310023, China
  • 4College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou , Zhejiang 310023, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (11)
    Equations (5)
    References (28)
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    Figures & Tables(11)
    Morphologies of feedstock powders. (a) Cu powder; (b) CNTs powder

    Fig. 1. Morphologies of feedstock powders. (a) Cu powder; (b) CNTs powder

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    Flow chart of electroless plating of copper on CNTs powder

    Fig. 2. Flow chart of electroless plating of copper on CNTs powder

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    Morphology and EDS scanning results of CNTs powder after electroless plating of copper. (a) Powder morphology; (b) C element; (c) O element; (d) Cu element

    Fig. 3. Morphology and EDS scanning results of CNTs powder after electroless plating of copper. (a) Powder morphology; (b) C element; (c) O element; (d) Cu element

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    Schematic of laser-assisted low pressure cold spraying system

    Fig. 4. Schematic of laser-assisted low pressure cold spraying system

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    Cross-sectional morphologies of laser-assisted low pressure cold sprayed CNTs/Cu composite coatings prepared at different spraying distances. (a) 10 mm; (b) 15 mm; (c) 20 mm

    Fig. 5. Cross-sectional morphologies of laser-assisted low pressure cold sprayed CNTs/Cu composite coatings prepared at different spraying distances. (a) 10 mm; (b) 15 mm; (c) 20 mm

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    Cross-sectional morphologies of laser-assisted cold sprayed CNTs/Cu composite coatings prepared at different scanning speeds. (a) 10 mm/s; (b) 20 mm/s; (c) 30 mm/s

    Fig. 6. Cross-sectional morphologies of laser-assisted cold sprayed CNTs/Cu composite coatings prepared at different scanning speeds. (a) 10 mm/s; (b) 20 mm/s; (c) 30 mm/s

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    Cross-sectional morphologies of laser-assisted cold sprayed CNTs/Cu composite coatings prepared under different laser irradiation powers. (a) 400 W; (b) 600 W; (c) 800 W; (d) 1000 W

    Fig. 7. Cross-sectional morphologies of laser-assisted cold sprayed CNTs/Cu composite coatings prepared under different laser irradiation powers. (a) 400 W; (b) 600 W; (c) 800 W; (d) 1000 W

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    Thickness and width of laser-assisted cold sprayed CNTs/Cu composite coating versus laser irradiation power

    Fig. 8. Thickness and width of laser-assisted cold sprayed CNTs/Cu composite coating versus laser irradiation power

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    Microstructure and EDS scanning results of laser-assisted cold sprayed CNTs/Cu composite coating. (a) Morphology of composite coating; (b) C element; (c) O element; (d) Cu element

    Fig. 9. Microstructure and EDS scanning results of laser-assisted cold sprayed CNTs/Cu composite coating. (a) Morphology of composite coating; (b) C element; (c) O element; (d) Cu element

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    Microstructure of etched CNTs/Cu composite coating prepared by laser-assisted cold spraying

    Fig. 10. Microstructure of etched CNTs/Cu composite coating prepared by laser-assisted cold spraying

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    • Table 1. Process parameters for laser-assisted low pressure cold spraying of CNTs/Cu composite coatings

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      Table 1. Process parameters for laser-assisted low pressure cold spraying of CNTs/Cu composite coatings

      SampleNitrogen pressure /MPaNitrogen temperature /℃Spraying distance /mmScanning speed /（mm⋅s-1）Powder feed rate /（g⋅min-1）Laser power /W
      a0.8500101025600
      b0.8500151025600
      c0.8500201025600
      d0.8500152025600
      e0.8500153025600
      f0.8500153025400
      g0.8500153025800
      h0.85001530251000
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    Chaowei Jiang, Bo Liu, Yunyi Zhang, Jingyong Sun, Bo Li, Qunli Zhang, Jianhua Yao. Process Optimization of CNTs/Cu Composite Coating Prepared by Laser-Assisted Low Pressure Cold Spraying[J]. Laser & Optoelectronics Progress, 2022, 59(7): 0724001

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    Paper Information

    Category: Optics at Surfaces

    Received: May. 24, 2021

    Accepted: Jun. 19, 2021

    Published Online: Apr. 11, 2022

    The Author Email: Bo Li (libo1011@zjut.edu.cn)

    DOI:10.3788/LOP202259.0724001

    Topics

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