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基于低发射率元表面的高级多物理伪装,加上波吸收和隔热气凝

Wenqing Hai¹, Siyi Bi¹, Lili Yang²

¹Engineering Research Center of Technical Textile, Ministry of Education, College of Textiles, Donghua University, Shanghai, 201620, China.

Small (Weinheim an der Bergstrasse, Germany)

|March 20, 2025

概括

这项研究引入了一种新型的双层隐形材料,将红外屏蔽元表面与阿拉米德纳米纤维气凝结合起来. 该材料实现了有效的雷达吸收和降低红外辐射,用于先进的多光谱伪装.

科学领域:

材料科学材料科学材料科学
电磁学电磁学电磁学电磁学
纳米技术纳米技术

背景情况:

整合多物理场隐蔽是具有挑战性的,因为相冲突的雷达和红外隐蔽机制.
现有的气凝提供微波散射和隔热,但受到高红外辐射的影响,限制了隐形应用.

研究的目的:

开发一个兼容的隐形复合材料,用于多物理场遮蔽.
为了克服基于气凝的隐形材料中高红外辐射的局限性.

主要方法:

设计了一个双层配置,包括一个红外屏蔽元表面 (ISM) 和阿拉米德纳米纤维 (ANF) 气凝.
ISM被设计为低通波,以调节发射率,同时保持微波透明度.
通过使用多尺度设计和异质表面工程来合成ANF气凝,用于雷达散射和隔热.

主要成果:

复合材料在X频段显示了近乎完美的吸收,最小反射损失 (RL) 为-32.44dB,有效吸收带宽 (EAB) 为3.69GHz.
低导热率 (0.0288 W/(m·K)) 和降低的平均红外辐射率 (0.23-0.25) 将红外辐射减少了68.1%.
综合有效反射损失值 (ΔH) 达到9.92 dB GHz mm-1.1.

结论:

开发的双层复合材料有效地整合了雷达和红外隐形能力.
这项研究为设计多光谱伪装材料提供了新的策略.
该材料显示了先进隐形技术的巨大潜力.

关键词:

绝缘气凝是气凝中的一种.低发射率的低发射率是什么这是一个元表面 (meta-surface).微波吸收方式微波吸收方式雷达-红外相容的隐形可以与雷达相容.

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