Optimized pyramidal honeycomb PEEK/CF composites metastructure through 3D printing for broadband electromagnetic wave absorption

IF 10 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Today Physics Pub Date : 2025-01-01 DOI:10.1016/j.mtphys.2024.101620

Ximing Zhang , Guoke Wei , Xinghan Huang , Hang Zhang , Xingyu Hao , Shujuan Tan , Kui Liu , Guangbin Ji

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Abstract

This study presents a novel pyramidal honeycomb metastructure, which integrates the geometric advantages of honeycomb and pyramid designs to achieve highly effective electromagnetic wave (EMW) absorption with reduced thickness. The pyramidal honeycomb metastructure capitalizes on the angle insensitivity characteristics of pyramidal geometries while leveraging the weight reduction benefits inherent in honeycomb designs. This metastructure is fabricated using an additive manufacturing (AM) process, specifically employing PEEK/CF composite through the fused deposition modeling (FDM) method, followed by a spraying process. The dimensions of the pyramidal honeycomb metastructure were optimized using simulation process, and its EMW absorption mechanism was thoroughly analyzed. The effective absorption bandwidth (EAB) of the composite metastructure nearly spans the Ku, K, and Ka bands at thin thicknesses, maintaining high performance even at incidence angles up to 45°. This research provides a valuable approach for aerospace applications, expanding the potential of 3D printing technologies in multi-scenario EMW absorption.

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通过3D打印优化锥体蜂窝PEEK/CF复合材料元结构，用于宽带电磁波吸收

本文提出了一种新型的金字塔蜂窝元结构，它结合了蜂窝和金字塔设计的几何优势，以减少厚度实现高效的电磁波吸收。锥体蜂窝元结构利用锥体几何形状的角度不敏感特性，同时利用蜂窝设计中固有的减轻重量的好处。该元结构是使用增材制造（AM）工艺制造的，特别是通过熔融沉积建模（FDM）方法使用PEEK/CF复合材料，然后进行喷涂工艺。采用仿真方法对锥体蜂窝元结构进行了尺寸优化，并对其吸收EMW的机理进行了深入分析。复合元结构的有效吸收带宽（EAB）在薄厚度下几乎跨越Ku， K和Ka波段，即使在入射角高达45°时也能保持高性能。这项研究为航空航天应用提供了一种有价值的方法，扩大了3D打印技术在多场景EMW吸收中的潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Materials Today Physics Materials Science-General Materials Science

CiteScore

14.00

自引率

7.80%

发文量

284

审稿时长

15 days

期刊介绍： Materials Today Physics is a multi-disciplinary journal focused on the physics of materials, encompassing both the physical properties and materials synthesis. Operating at the interface of physics and materials science, this journal covers one of the largest and most dynamic fields within physical science. The forefront research in materials physics is driving advancements in new materials, uncovering new physics, and fostering novel applications at an unprecedented pace.