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Infrared and Laser Engineering, Volume. 52, Issue 10, 20230033(2023)

Research on spectral emissivity characteristics of blackbody coatings

Jingwei Ding1,2, Xiaopeng Hao2, Kun Yu1, Jian Song2, and Jingjing Zhou2
Author Affiliations
  • 1College of Physics, Henan Normal University, Xinxiang 453007, China
  • 2National Institute of Metrology, Beijing 100029, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (15)
    Equations (11)
    References (15)
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    Figures & Tables(15)
    Emissivity measuring device

    Fig. 1. Emissivity measuring device

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    Coating structure

    Fig. 2. Coating structure

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    Three kinds of coating physical picture

    Fig. 3. Three kinds of coating physical picture

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    Comparison of spectral emissivity between vacuum and atmosphere of three coatings

    Fig. 4. Comparison of spectral emissivity between vacuum and atmosphere of three coatings

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    Spectral emissivity of GR and Nextel 811-21 coatings of different thickness

    Fig. 5. Spectral emissivity of GR and Nextel 811-21 coatings of different thickness

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    SEM comparison of Nextel 811-21 coatings. (a) and (b) are 1000 × and 200 × thin coatings; (c) and (d) are 1000 × and 200 × thicker coatings

    Fig. 6. SEM comparison of Nextel 811-21 coatings. (a) and (b) are 1000 × and 200 × thin coatings; (c) and (d) are 1000 × and 200 × thicker coatings

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    SEM comparison of GR coatings. (a) and (b) are 1000 × and 200 × thin coatings; (c) and (d) are 1000 × and 200 × thicker coatings

    Fig. 7. SEM comparison of GR coatings. (a) and (b) are 1000 × and 200 × thin coatings; (c) and (d) are 1000 × and 200 × thicker coatings

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    Emissivity of three coatings within 30° measured angles

    Fig. 8. Emissivity of three coatings within 30° measured angles

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    Comparison of spectral emissivity of GR coatings before and after irradiation

    Fig. 9. Comparison of spectral emissivity of GR coatings before and after irradiation

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    Comparison of spectral emissivity of Nextel 811-21 coatings before and after irradiation

    Fig. 10. Comparison of spectral emissivity of Nextel 811-21 coatings before and after irradiation

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    Comparison of spectral emissivity of Nextel 811- 21+MWCNT coatings before and after irradiation

    Fig. 11. Comparison of spectral emissivity of Nextel 811- 21+MWCNT coatings before and after irradiation

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    • Table 1. Nextel 811-21 and GR coating thickness, emissivity comparison table

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      Table 1. Nextel 811-21 and GR coating thickness, emissivity comparison table

      Coating numberAverage thickness/µmEmissivity
      GR-154.90.9780
      GR-262.10.9784
      GR-379.50.9757
      GR-484.90.9751
      GR-5130.60.9713
      GR-6168.90.9698
      Nextel 811-21-168.60.9783
      Nextel 811-21-272.90.9787
      Nextel 811-21-397.40.9763
      Nextel 811-21-4175.90.9714
      Nextel 811-21-5191.70.9699
      Nextel 811-21-6233.40.9687

    • Table 2. Space irradiation comparison table

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      Table 2. Space irradiation comparison table

      Particle energy/ keV Electron flux/ e·cm−2Proton flux/ p·cm−2In-orbit year/ a
      1003.6×10158.1×10143
      6.0×10151.3×10155
      9.6×10152.2×10158

    • Table 3. Comparison table of emissivity of retained sample coatings

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      Table 3. Comparison table of emissivity of retained sample coatings

      Retained sample coatingFirst timeSecond timeVariation
      GR0.97350.97330.0002
      Nextel 811-210.97340.97370.0003
      Nextel 811-21+MWCNT0.97250.97220.0003

    • Table 4. Comparison table of emissivity of sample coating before and after irradiation

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      Table 4. Comparison table of emissivity of sample coating before and after irradiation

      In-orbit year/aCoating numberUnirradiatedIrradiatedCoating color change
      3GR-10.97370.9737Grayness
      Nextel 811-21-10.97340.9739Grayness
      Nextel 811-21+MWCNT-10.97290.9720Grayness
      5GR-20.97360.9732Grayness
      Nextel 811-21-20.97390.9747Grayness
      Nextel 811-21+MWCNT-20.97290.9718Grayness
      8GR-30.97320.9723Grayness
      Nextel 811-21-30.97370.9754Grayness
      Nextel 811-21+MWCNT-30.97230.9702Grayness
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    Jingwei Ding, Xiaopeng Hao, Kun Yu, Jian Song, Jingjing Zhou. Research on spectral emissivity characteristics of blackbody coatings[J]. Infrared and Laser Engineering, 2023, 52(10): 20230033

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    Paper Information

    Category: Photoelectric measurement

    Received: Jan. 17, 2023

    Accepted: --

    Published Online: Nov. 21, 2023

    The Author Email:

    DOI:10.3788/IRLA20230033

    Topics

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