智能和灵活的光学太阳反射器用于太空中的被动辐射冷却调节,使用W:VO2元表面
Mirko Simeoni1, Kai Sun2, Alessandro Urbani1
1Consorzio C.R.E.O. L'Aquila Italy.
Nanophotonics (Berlin, Germany)
|March 9, 2026
概括
本研究介绍了一种灵活,智能光学太阳反射器 (meta-OSR),使用W:VO2超表面进行航天器热管理. 超OSR提供了适应性发射,并通过了太空资格测试,对超轻卫星来说是有前途的.
科学领域:
- 材料科学 材料科学 材料科学
- 航空航天工程 航空航天工程
- 纳米技术纳米技术
背景情况:
- 对于航天器来说,被动热管理至关重要.
- 需要具有自适应发射的智能光学太阳能反射器 (OSR) 来实现高效的热控制.
- 现有的OSR在性能和集成方面面临挑战.
研究的目的:
- 开发一个灵活的,智能的基于地表的OSR (meta-OSR) 灵活的,用于被动的航天器热管理.
- 为了证明一个元OSR与温度适应的辐射发射在室温周围.
- 评估制造后的元OSR的性能和空间准备.
主要方法:
- 基于W:VO2的超表面的制造,与低发射率太阳反射器集成.
- 使用纳米印记光刻法和低温W:VO2工艺.
- 在太空资格条件下测试元OSR的光学特性,过渡温度和性能.
主要成果:
- 智能元OSR具有0.22的太阳吸收率和0.8.8的高温发射率.
- 达到0.33的红外辐射对比度和30°C的过渡温度 (T_MIT).
- 在聚胺上证明了大面积 (10x10厘米) 的制造,通过了严格的空间合格测试,降解程度微不足道.
结论:
- 开发的智能元OSR可显著减轻重量,并轻松集成到航天器中.
- 该设备已准备好生产,在太空环境条件下表现出强大的性能.
- 这项技术代表了超轻型航天器和小型卫星的下一代热控制解决方案.
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