The Strong Broadband Microwave Absorption Properties of FeSiCr@Ni0.5Zn0.5Fe2O4 Composites Realized by Optimizing Impedance Matching DOI Open Access
Jin Hou,

Zirong Ma,

Ruoyu Yang

et al.

physica status solidi (a), Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 14, 2024

Flaky FeSiCr@Ni 0.5 Zn Fe 2 O 4 composites are successfully synthesized via ball milling and hydrothermal method. The microstructure, morphology, phase composition of flaky analyzed using X‐Ray diffractometer, energy dispersive spectroscopy, scanning electron microscope, transmission microscope techniques. electromagnetic wave absorption characteristics the composite with varying contents Ni comprehensively investigated. results show that introduction reduces permittivity, improves synergistic effect magnetic loss dielectric loss, optimizes impedance matching, enhances overall performance composites. sample prepared a 40 wt% displays most pronounced performance. RL min (reflection loss) reached −41.3 dB at 4.3 GHz, maximum effective bandwidth (EAB) reaches 5.6 GHz which is 7–8 times original sample. Notably, through adjusting thickness composites, EAB could be broadened to 10.5 (2.5–13.0 GHz), encompassing entire C X bands. have advantages wide source raw materials, strong microwave ability, frequency range, expected become potential material in future.

Language: Английский

High Entropy Ceramics for Electromagnetic Functional Materials DOI Open Access
Luyang Li, Min Zhang, Miao Jiang

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 9, 2024

Abstract Microwave absorbing materials play an increasingly important role in modern electronic warfare technology for enhancing electromagnetic compatibility and suppressing interference. High‐entropy ceramics (HECs) possess extraordinary physical chemical properties, more importantly, the high tunability of multi‐component HECs has brought new opportunities to microwave materials. Rich crystallographic distortions occupancies enable have highly efficient absorption excellent mechanical thermal stability. Therefore, structural advantages are integrated from comprehensive perspectives, emphasizing on dielectric magnetic properties phenomenon. Strategies proposed improve capacity HECs, including composition optimization, microstructure engineering, post‐treatment technology. Finally, problems obstacles associated with high‐entropy (HEMs) research discussed. The innovative design concepts highlighted.

Language: Английский

Citations

27

Confining Magnetic Response by the Surface Reorganization of Buckling Permalloy Microspheres for Boosting Microwave Absorption DOI

Xiaofen Yang,

Zhengchen Wu,

Ke Pei

et al.

ACS Nano, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 25, 2025

Sharp corners and edges with high surface curvature provide low-dimensional nanosized materials special static magnetic properties. However, the engineering of their high-frequency response remains challenging, underlying mechanism requires further clarification. In this study, we propose a template-aided reorganization strategy for integrating surfaces different curvatures into one permalloy architecture. The high-curvature demonstrates dramatic variation in localized moments confines coupling flux lines owing to anisotropy, which helps concentrate energy absorption dissipation. addition, resonances multiple were superimposed by spin-wave interaction enhancing loss capacity, cooperates amorphous/crystalline interfacial polarization achieve satisfactory dielectric–magnetic synergistic electromagnetic wave (EMW) performance. reflectance values increased from −13.4 dB microspheres −49.7 surface-restructured ones. Remarkably, effective bandwidth can be extended 7.68 GHz matching thickness 2.0 mm. This advancement presents new possibilities an elaborate design EMW absorbers establishes basis comprehending complex mechanism.

Language: Английский

Citations

1

Ultra-wideband microwave absorption of W-type/Spinel composite ferrites based on the distributions of Co2+ and Zn2+ DOI
Xiaoqiang Xiong, Xiaodong Jing, Qianqian Zhao

et al.

Ceramics International, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 1, 2025

Language: Английский

Citations

0

Superhydrophobic wave-absorbing cotton fabric based on peanut shell porous carbon DOI Creative Commons

Meiran Dou,

Lihui Xu, Tongwen Xu

et al.

Research Square (Research Square), Journal Year: 2025, Volume and Issue: unknown

Published: March 14, 2025

Abstract The increasing demand for electronic products has exacerbated the phenomenon of electromagnetic pollution, which in turn driven development high-performance flexible microwave absorbing materials. In this work, cotton fabrics were first modified with polydopamine (PDA). Afterwards, polydimethylsiloxane (PDMS) and porous peanut shell carbon material (KPS) applied to fabric. prepared fabric showed superhydrophobicity a water droplet contact angle 163.7°. optimized exhibited excellent wave-absorbing performance due synergistic effect conduction loss, interfacial polarization loss surface roughness topography. At matching thickness 2.5 mm, minimum reflection value reached 47.13 dB, effective bandwidth covered almost entire X-band. PDA/KPS/PDMS-Cotton had UV resistance. Its UPF is 1317.31, transmittance UVA UVB was 0.11% 0.06%, respectively. addition, obtained robust enough withstand damage such as repeated rubbing still maintained absorption properties. This study provided promising way develop durable materials

Language: Английский

Citations

0

Dimensionality-driven sustainable biocarbon-based microwave absorbers: From bio-waste to functional materials DOI
Muhammad Adnan Aslam,

Rabia Ahsen,

Zubaida Rukhsana Usha

et al.

Next Materials, Journal Year: 2025, Volume and Issue: 8, P. 100584 - 100584

Published: March 15, 2025

Language: Английский

Citations

0

Construction and electromagnetic wave absorption properties of polypyrrole encapsulated Ni-MOF nanoflower derivatives DOI
Kun Zhang, Xuedong Zhang, Yehuan Sun

et al.

Journal of Materials Science Materials in Electronics, Journal Year: 2025, Volume and Issue: 36(9)

Published: March 1, 2025

Language: Английский

Citations

0

Wave absorption control strategy of rare earth praseodymium ion in M-type strontium ferrite materials DOI
Qianqian Zhao, Xiaodong Jing, Xiaoqiang Xiong

et al.

Materials Science and Engineering B, Journal Year: 2025, Volume and Issue: 318, P. 118283 - 118283

Published: April 6, 2025

Language: Английский

Citations

0

MHz low loss approach of Fe-Si soft magnetic composite DOI
Xiaowei Jin, Tong Li,

Hao Feng

et al.

Journal of Alloys and Compounds, Journal Year: 2025, Volume and Issue: unknown, P. 180610 - 180610

Published: April 1, 2025

Language: Английский

Citations

0

Preparation of Mn/Zn Co-Doping Hollow Ferrite Microspheres for Enhanced Microwave Attenuation DOI

Mian Sun,

Shuo Cheng, Jinyi Zhang

et al.

Published: Jan. 1, 2025

Language: Английский

Citations

0

Enhanced Microwave Absorption Properties of Samarium-Doped Composites: Structural and Electromagnetic Analysis DOI
Siti Nor Ain Rusly,

Arlina Ali,

Norliza Ismail

et al.

Ceramics International, Journal Year: 2025, Volume and Issue: unknown

Published: May 1, 2025

Language: Английский

Citations

0