Hierarchical 3D FeCoNi Alloy/CNT @ Carbon Nanofiber Sponges as High-Performance Microwave Absorbers with Infrared Camouflage DOI Open Access
Yifan Fei, Jing Yao, Cheng Wei

et al.

Materials, Journal Year: 2024, Volume and Issue: 18(1), P. 113 - 113

Published: Dec. 30, 2024

Microwave absorbers with infrared camouflage are highly desirable in military fields. Self-supporting 3D architectures tailorable shapes, composed of FeCoNi alloy/carbon nanotubes (CNTs) @ carbon nanofibers (CNFs), were fabricated this study. On the one hand, multiple loss mechanisms introduced into high-elastic sponges. Controllable space conductive networks caused by situ growth CNTs on CNFs contributed to effective dielectric and resistance loss. Moreover, uniformly distributed magnetic alloy nanoparticles (NPs) dense coupling resulted other heterogeneous interfaces constructed multicomponent engineering, causing interfacial polarization Furthermore, internal structures sponges optimized regulating NPs sizes state CNTs, then tuning impedance matching microwave absorption. Therefore, ultra-low density (7.6 mg·cm−3) found have excellent radar infrared-compatible stealth properties, displaying a minimum refection (RLmin) −50.5 dB maximum absorption bandwidth (EABmax) 5.36 GHz. effect was evaluated cross-section (RCS) simulation, revealing that multifunctional promising prospect applications.

Language: Английский

Asymmetric Structural Design for Absorption‐Dominated Electromagnetic Interference Shielding Composites DOI Open Access

Meng Zhou,

Zheyin Yu,

Qiming Yan

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 28, 2025

Abstract Excessive electromagnetic pollution caused by waves can interfere with the normal use of electronic devices or cause unnecessary damage to human health. Although conductive polymer composites (CPCs) are used replace traditional metals as an effective strategy for managing undesirable waves, CPCs have a non‐negligible trade‐off in enhancement interference (EMI) shielding effectiveness and absorption coefficient because their reflection‐dominated EMI mechanism. Therefore, alleviate secondary pollution, absorption‐dominated asymmetric structures urgently needed. Recently, structural designs advanced significantly, but seldom been summarized discussed detail. Consequently, this review first systematically summarizes current progress after brief clarification about necessity configuration structure design. Afterward, various fiber, layered, porous, composite described. Besides, versatility is briefly introduced. Finally, challenges prospects proposed guide future advancement field.

Language: Английский

Citations

2
Hierarchical Polyimide Nonwoven Fabric with Ultralow-Reflectivity Electromagnetic Interference Shielding and High-Temperature Resistant Infrared Stealth Performance DOI Creative Commons
Xinwei Tang,

Yezi Lu,

Shuangshuang Li

et al.

Nano-Micro Letters, Journal Year: 2024, Volume and Issue: 17(1)

Published: Dec. 3, 2024

Abstract Designing and fabricating a compatible low-reflectivity electromagnetic interference (EMI) shielding/high-temperature resistant infrared stealth material possesses critical significance in the field of military. Hence, hierarchical polyimide (PI) nonwoven fabric is fabricated by alkali treatment, in-situ growth magnetic particles "self-activated" electroless Ag plating process. Especially, impedance matching can be constructed systematically assembling Fe 3 O 4 /Ag-loaded PI (PFA) pure Ag-coated (PA), endowing it with an ultralow-reflectivity EMI shielding performance. In addition, thermal insulation fluffy three-dimensional (3D) space structure PFA low emissivity PA originated from bring excellent More importantly, strong bonding interaction between , Ag, fiber improves stability high-temperature Such comprehensive performance makes promising for military tents to protect internal equipment stemmed adjacent and/or enemy, inhibit external detection.

Language: Английский

Citations

9
Rigid polymethacrylimide composites foam for efficient electromagnetic dissipation and infrared stealth DOI
Zihang Zhang,

Zixuan Wang,

Yanjun Zhang

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 160138 - 160138

Published: Feb. 1, 2025

Language: Английский

Citations

1
Ultrahigh absorption dominant EMI shielding polyimide composites with enhanced piezoelectric property DOI
Hui Li,

Jianwei Li,

Wei Chu

et al.

Composites Science and Technology, Journal Year: 2024, Volume and Issue: 257, P. 110820 - 110820

Published: Aug. 22, 2024

Language: Английский

Citations

8
Bioinspired 3D Printed Metamaterial for Wideband Microwave Absorption and Aerodynamic Efficiency DOI
Chaoqun Ge,

Huaiyu Dong,

Zonghan Li

et al.

Composites Science and Technology, Journal Year: 2024, Volume and Issue: 257, P. 110846 - 110846

Published: Sept. 5, 2024

Language: Английский

Citations

6
Lightweight double-layer structured ANF/MXene aerogel film with electromagnetic interference shielding and dynamic infrared camouflage DOI

Yong Shen,

Guojie Li,

Yajie Cheng

et al.

Advanced Composites and Hybrid Materials, Journal Year: 2024, Volume and Issue: 7(5)

Published: Oct. 1, 2024

Language: Английский

Citations

5
Infrared Ultralow‐Emissivity Polymeric Metafabric Conductors Enabling Remarkable Electromagnetic and Thermal Management DOI Open Access
Runsheng Yu, Mengyao Wang, Weifang Lu

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 16, 2025

Abstract Infrared ultralow‐emissivity fabric has garnered significant interest for applications in infrared stealth and personal thermal management. However, reconciling the competing demands of low emissivity, breathability, mechanical strength poses a formidable challenge. Here, an air‐permeable polymeric metafabric distinguished by unique non‐through‐hole structure is presented. This design achieved through electroless plating silver nanoparticles onto commercially available nylon fabric, supplemented intermediate layer hot‐processed porous mesh. demonstrates ultralow emissivity 0.044, exceptional electrical conductivity 51 315 S m −1 , impressive electromagnetic interference shielding efficiency 78 dB, high tensile 110 MPa. The conductivity, are among highest values reported low‐emissivity fabrics. also exhibits air permeability that conforms to Grade 2 international standards. facilitates precision heating across diverse environments its integrated capabilities passive radiative active solar/Joule heating. Additionally, displays antibacterial properties, flame retardancy, sweat absorption, quick‐drying, washability performance, thereby significantly enhancing wearability. high‐performance, multifunctional, holds great promise camouflage, protection,

Language: Английский

Citations

0
Ambient pressure dried polyimide/silica aerogels for efficient radar stealth at high temperature DOI

Mingyang Zhu,

Wei Li, Siyuan Yang

et al.

Composites Communications, Journal Year: 2025, Volume and Issue: unknown, P. 102338 - 102338

Published: March 1, 2025

Language: Английский

Citations

0
Hierarchical 3D FeCoNi Alloy/CNT @ Carbon Nanofiber Sponges as High-Performance Microwave Absorbers with Infrared Camouflage DOI Open Access
Yifan Fei, Jing Yao, Cheng Wei

et al.

Materials, Journal Year: 2024, Volume and Issue: 18(1), P. 113 - 113

Published: Dec. 30, 2024

Microwave absorbers with infrared camouflage are highly desirable in military fields. Self-supporting 3D architectures tailorable shapes, composed of FeCoNi alloy/carbon nanotubes (CNTs) @ carbon nanofibers (CNFs), were fabricated this study. On the one hand, multiple loss mechanisms introduced into high-elastic sponges. Controllable space conductive networks caused by situ growth CNTs on CNFs contributed to effective dielectric and resistance loss. Moreover, uniformly distributed magnetic alloy nanoparticles (NPs) dense coupling resulted other heterogeneous interfaces constructed multicomponent engineering, causing interfacial polarization Furthermore, internal structures sponges optimized regulating NPs sizes state CNTs, then tuning impedance matching microwave absorption. Therefore, ultra-low density (7.6 mg·cm−3) found have excellent radar infrared-compatible stealth properties, displaying a minimum refection (RLmin) −50.5 dB maximum absorption bandwidth (EABmax) 5.36 GHz. effect was evaluated cross-section (RCS) simulation, revealing that multifunctional promising prospect applications.

Language: Английский

Citations

0