Dielectric shell regulation in synergy FeCoNi@ZnIn2S4 microspheres with broadband electromagnetic wave absorption

IF 15.9

Soft science Pub Date : 2025-07-17 DOI:10.20517/ss.2025.21

Rui Sun, Huanhuan Lv, Gangjie Lian, Lei Wang, Mengqiu Huang, Wenbin You, Renchao Che

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引用次数: 12

Abstract

Core-shell structure and magnetic-dielectric coupling in functional composites are important factors for obtaining excellent electromagnetic (EM) wave absorption performance, but they also face challenges. In this study, magnetic FeCoNi and dielectric ZnIn2S4 were combined to form unique core-shell structured microspheres. The morphology characteristics, EM parameters, and absorption performance of FeCoNi@ZnIn2S4 composites with different annealing temperatures were investigated to reveal impedance matching and synergistic absorption mechanisms. Those results show that FeCoNi@ZnIn2S4-600 (FCNZ-600) has excellent EM wave absorption properties, with the minimum reflection loss (RLmin) of -52.4 dB at 1.9 mm and the efficient absorption bandwidth of 6.08 GHz at 1.53 mm, which achieves broadband absorption. Core-shell magnetic-dielectric design provides a new perspective in efficient EM wave absorption systems.

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具有宽带电磁波吸收的微球协同作用中的介电壳调节FeCoNi@ZnIn<；sub>2S4

功能复合材料的核壳结构和磁介电耦合是获得优异电磁波吸收性能的重要因素，但也面临着挑战。在本研究中，磁性FeCoNi与介电ZnIn<；sub>2S4；结合形成独特的核壳结构微球。研究了不同退火温度下FeCoNi@ZnIn<；sub>2S4；复合材料的形貌特征、EM参数和吸收性能，揭示了阻抗匹配和协同吸收机制。结果表明：FeCoNi@ZnIn<；sub>2S4-600 （FCNZ-600）具有优异的电磁波吸收性能，在1.9 mm处反射损耗最小（RLmin）为-52.4 dB，在1.53 mm处有效吸收带宽为6.08 GHz，实现了宽带吸收。核壳磁介质设计为高效电磁波吸收系统的研究提供了新的思路。

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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