Broadband absorption performance of 3D-printed polyetheretherketone-based electromagnetic wave-absorbing composites

作     者：Lin BAI Nan CHANG Meiying ZHAO Chi HOU Yi CAO Dichen LI Lin BAI;Nan CHANG;Meiying ZHAO;Chi HOU;Yi CAO;Dichen LI

作者机构：School of AeronauticsNorthwestern Polytechnical UniversityXi’an 710072China Chengdu Aircraft Design and Research InstituteChengdu 610091China Xi’an Key Laboratory of Advanced Structure Design and Application of AircraftNorthwestern Polytechnical UniversityXi’an 710072China State Key Laboratory for Manufacturing System EngineeringXi’an Jiaotong UniversityXi’an 710054China 

出 版 物：《Chinese Journal of Aeronautics》 (中国航空学报（英文版）)

年 卷 期：2024年第37卷第8期

页      面：547-558页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：the National Natural Science Foundation of China(No.12272298) 

主　　题：Absorption performance Additive manufacturing Electromagnetic absorption PEEK composite materials Gradual structure Broadband absorption 

摘      要：The rapid development of additive manufacturing technology has offered a new avenue for designing and fabricating high wave-absorbing meta *** this study,the mechanical properties and broadband absorption performance of Poly-Ether-Ether-Ketone(PEEK)–based electromagnetic wave–absorbing composite materials was *** high-performance polymer PEEK was used as the matrix,and the materials with electromagnetic wave loss,such as reduced graphene oxide,Carbonyl Iron(CI),and Flake CI(FCI),were used as *** on the theory of impedance matching,a wave-absorbing structure with a gradual impedance gradient was designed and *** test results showed that at the 2.0–18.0 GHz frequency band,the coverage rate of the effective absorption bandwidth was up to 72.0%,the average optimal reflectivity was–18.09 dB,and the wide-angle absorption range was 0°–30°.The advantages of additive manufacturing technology in designing and fabricating wave-absorbing structures are presented,demonstrating that the technology is an effective method for creating broadband absorbing structures.