基于光子谐振效应的热控超材料设计与辐射特性研究
作者:
作者单位:

1.上海卫星装备研究所,上海 200240;2.上海交通大学 材料科学与工程学院,上海 200240

作者简介:

韩贺祥(1993—),男,工程师,硕士,主要研究方向为热控涂层、空间材料学等。

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基金项目:

国家重点研发计划资助项目(2022YFB3903104)


Design and Radiation Characteristics of Thermal Control Metamaterials Based on Photonic Resonance Effect
Author:
Affiliation:

(1.Shanghai Institute of Satellite Equipment,Shanghai 200240,China;2.School of Materials Science and Engineering,Shanghai Jiao Tong university,Shanghai 200240,China)

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    摘要:

    本文针对航天器表面高效散热需求,创新引入超材料概念,提出基于谐振效应的微纳结构高效光学散热材料思路,从材料组分选择与物性计算分析出发,研究建立了适用于空间高效散热的可见光高反射和红外高发射模型。结果表明:通过采用两种高低折射率材料组合成一维光子晶体,可以在较少的膜层内实现超高反射率。具体表现为:将金刚石/NaF与GaP/NaF膜层叠加,总层数为71层时获得250~2 500 nm波段平均反射率为99.97%的结构;设计了宽粒径分布2~8 μm SiO2微球周期排列光子晶体,将红外发射率提升至93%。进一步将上述两种模型复合,实现250~2 500 nm波段平均反射率>99%,3~15 μm波段内发射率达92%,8~15 μm波段内发射率达94%,散热性能相比传统热控涂层明显提高。

    Abstract:

    The concept of metamaterials is innovated to meet the requirements of efficient heat dissipation on spacecraft surfaces,and a novel idea of efficient optical heat dissipation materials with micro-nano structure based on the resonance effect is proposed.Based on the analyses on material component selection and physical property calculation,visible light high-reflection and infrared high-emission models suitable for the efficient heat dissipation in space are investigated and established.The results show that by synthesizing one-dimensional photonic crystals with two kinds of materials,i.e.,high and low refractive index materials,ultra-high reflectance can be achieved in a few film layers.When the diamond /NaF and GaP/NaF layers are superimposed,the average reflectance in the 250~2 500 nm band is 99.97% when the total number of layers is 71.A SiO2 microsphere with the width diameter of 2~8 μm is designed to periodically align photonic crystals,the infrared emissivity of which is over 99% in the 250~2 500 nm band.The above two models are combined further.The obtained emissivity in the 3~15 μm band reaches 92%,and the obtained emissivity in the 8~15 μm band reaches 94%.The heat dissipation performance is significantly improved compared with the traditional thermal control coating.

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韩贺祥,王惠芬,徐骏,赵其斌,宋效坤,曹康丽,刘刚.基于光子谐振效应的热控超材料设计与辐射特性研究[J].上海航天(中英文),2024,41(6):63-69.

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  • 收稿日期:2024-11-04
  • 最后修改日期:2024-11-16
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  • 在线发布日期: 2025-01-14
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