深空辐射环境对高吸收率消杂光涂层的性能影响
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1.北京卫星制造厂有限公司,北京 100190;2.中国航天宇航元器件工程中心,北京 100094

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TB4

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Effect of Deep Space Radiation Environments on Properties of High Absorptivity Stray Light Coatings
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1.Beijing Spacecrafts,Beijing 100190;2.China Aerospace Components Engineering Center,Beijing 100094

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    摘要:

    为了研究深空辐射环境对SCB-1型空间高吸收率消杂光涂层的太阳光谱吸收性能影响。采用5 000 ESH剂量的真空-紫外、2.5×1015 p/cm2注量的真空-质子和2.5×1016 e/cm2注量的真空-电子依次对SCB-1消杂光涂层进行串联辐照试验,分析各项辐照试验前后消杂光涂层外观、太阳吸收比αs及半球发射率εH的变化情况。并采用热失重分析(Thermal Gravity Analysis)判断消杂光涂层受辐照试验后的分解情况与热稳定性变化。经串联辐照试验后,SCB-1消杂光涂层全波段太阳吸收比总变化值Δαs下降了0.011~0.012,400~1 100 nm波段太阳吸收比总变化值Δαs下降了0.011~0.013,以上三项串联辐照过程中SCB-1消杂光涂层的半球发射率总变化值ΔεH无明显变化。SCB-1消杂光涂层呈现了极佳的深空辐射环境下的消杂光持久性,可对未来深空探测领域的光学技术发展提供有力支持。

    Abstract:

    In order to investigate the effect of deep space irradiation enviroment on solar spectral absorption performance of SCB-1 high absorptivity stray light coatings,the series irradiation tests of SCB-1 stray light coatings were carried out with 5 000 ESH vacuum-UV irradiation, 2.5×1015 p/cm2 vacuum-proton irradiation and 2.5×1016 e/cm2 vacuum-electron irradiation. The changes of appearance, solar absorption and hemispheric emissivity of stray light coatings before and after various deep space irradiation tests were analyzed. Thermal gravity analysis was used the determine the decomposition and thermal stability of the coatings after the deep space irradiation test. After the series irradiation test, the total change value of solar absorption of SCB-1 stray light coatings in the full-wave band decreased by 0.011 to 0.012, and the total change value of solar absorption of SCB-1 stray light coatings in the 400 to 1 100 nm band decreased by 0.011 to 0.013.During the above three series irradiation process, the total change value of hemispherical emissivity of SCB-1 stray light coatings have no obvious change. SCB-1 stray light coatings show the excellent extinction durability under deep space irradiation environment, which provide the strong support for future development of optical technology in deep space exploration field.

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张家强,牛虎,杨佑健,孙浩然,平托.深空辐射环境对高吸收率消杂光涂层的性能影响[J].宇航材料工艺,2021,51(5):134-138.

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  • 收稿日期:2021-05-08
  • 最后修改日期:2021-10-16
  • 录用日期:2021-08-02
  • 在线发布日期: 2021-10-26
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