超轻型多功能气凝,在微/宏尺度上与现场增强的奇多网络,用于超高效电磁元结构吸收器
Weichao Wang1, Liuying Wang1, Jie Huang1
1Zhijian Laboratory, Rocket Force University of Engineering, Xi'an 710025, PR China.
Carbohydrate polymers
|March 6, 2025
概括
这项研究报告了一种超轻,多功能的基托基气凝,用碳纳米管和碳纤维增强. 这种新型材料在各种条件下展示了高效的超宽带微波吸收.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术纳米技术
- 电磁学 电磁学 电磁学 电磁学
背景情况:
- 开发轻量级,多功能微波吸收材料对于先进的应用至关重要.
- 现有的材料往往在宽带吸收,环境适应性和多功能性方面扎.
研究的目的:
- 为了创建一个超轻,弹性,多功能气凝,以提供高效的微波吸收.
- 使用这种气凝来设计电磁元结构吸收器 (EMA),以提高性能.
主要方法:
- 用碳纳米管 (CNT) 和碳纤维 (CF) 增强的基托基气凝的制造.
- 使用激光蚀刻来创建用于电磁波操纵的周期性元结构.
- 物理,机械,热,介电和微波吸收性能的表征.
主要成果:
- CF-C/C气凝具有超低密度 (19.64 mg/cm3),低导热率和自灭特性.
- 激光蚀刻的元结构实现了从S到Ka频段的超宽带吸收 (37.9GHz).
- 通过广泛的温度范围 (-20-200°C) 和发生角度 (5-70°) 证明了有效的吸收.
结论:
- 开发的气凝元结构吸收器为复杂环境中的宽带微波吸收提供了一个有前途的解决方案.
- 材料的轻量化,多功能性和环境适应性的组合得到了突出突出.
- 这项工作为先进的基于气凝的电磁装置的实际应用铺平了道路.
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