Facile construction of intelligent flexible double layer honeycomb sandwich structure for tunable microwave absorption by 4D printing

IF 10.3 1区工程技术 Q1 ENGINEERING, MANUFACTURING

Additive manufacturing Pub Date : 2025-02-05 DOI:10.1016/j.addma.2025.104661

Wei Xiao , Shaoqi Shi , Pei Liu , Zhilei Hao , Zhaoxia Tian , Qingqing Gao , Kai Xu , Yinxu Ni , Jin Chen , Changtian Zhu , Zhixiang Li , Gaojie Xu , Hui Zhang , Fenghua Liu

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引用次数: 0

Abstract

The integration of structure and material can endow microwave absorbers with excellent performance and broad application fields. However, its integrative manufacturing is extremely challenging, especially for the integration of functional materials and intelligent structures. In this context, the liquid crystal display (LCD) 4D printing was used to construct a kind of intelligent flexible double layer honeycomb sandwich structure by integrating multifunctional MXene@flake carbonyl iron powder (FCIP) and shape memory polymers (SMPs) resin. By controlling the applied time of the magnetic field, the structure with shape memory effect (SME) will be recovered to different radius of curvature (R) and center angle (α), which can endow the device with different absorption strengths and effective absorption bandwidth (EAB). When the α and R of the structure are 65.2° and 16.7 cm, the minimum reflection loss (RL_min) measured by the bow method is −50.87 dB, and the EAB (RL < −10 dB) reaches 13.8 GHz covering the C, X, and Ku bands. In addition, the applicability of smart structure devices in stealth technology is further confirmed by radar cross section (RCS) simulation, which is consistent with the conclusion of the measured results. This work enables the potential for rapid manufacturing of an intelligent, flexible, and ultra-broadband strong microwave absorbing device with integrated structure and function by 4D printing, which can be used in smart anti electronic reconnaissance, flexible wearable devices, and stealth technology.

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来源期刊

Additive manufacturing Materials Science-General Materials Science

CiteScore

19.80

自引率

12.70%

发文量

648

审稿时长

35 days

期刊介绍： Additive Manufacturing stands as a peer-reviewed journal dedicated to delivering high-quality research papers and reviews in the field of additive manufacturing, serving both academia and industry leaders. The journal's objective is to recognize the innovative essence of additive manufacturing and its diverse applications, providing a comprehensive overview of current developments and future prospects. The transformative potential of additive manufacturing technologies in product design and manufacturing is poised to disrupt traditional approaches. In response to this paradigm shift, a distinctive and comprehensive publication outlet was essential. Additive Manufacturing fulfills this need, offering a platform for engineers, materials scientists, and practitioners across academia and various industries to document and share innovations in these evolving technologies.