水热合成技术制备的铁镍/石墨烯复合材料的优异微波吸收特性

IF 2.7 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Letters Pub Date : 2025-04-14 DOI:10.1016/j.matlet.2025.138582

Y.G. Deng, B.D. Cui, Y. Li

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引用次数: 0

摘要

采用水热法合成了具有优异微波吸收性能的FeNi/石墨烯复合材料。结果表明，随着石墨烯含量的增加，反射损耗（RL）显著提高。样品GN3在12 GHz时的RLmin为- 22.92 dB，在4.84 GHz （8.15-12.99 GHz）范围内的有效带宽小于- 10 dB。多种损耗机制的协同作用，包括界面极化和涡流损耗，有助于整体微波吸收性能。

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Superior microwave absorption properties of FeNi/graphene composites prepared by the hydrothermal synthesis technique

A FeNi/Graphene composite with superior microwave absorption properties was synthesized via the hydrothermal technique. The results show that the reflection loss (RL) significantly improves with an increase in the Graphene content. The sample GN3 achieves an RLmin of −22.92 dB at 12 GHz, exhibiting an effective bandwidth of less than −10 dB across a span of 4.84 GHz (8.15–12.99 GHz). The synergistic effects of multiple loss mechanisms, including interface polarization and eddy current loss, contributes to the overall microwave absorption performance.

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来源期刊

Materials Letters 工程技术-材料科学：综合

CiteScore

5.60

自引率

3.30%

发文量

1948

审稿时长

50 days

期刊介绍： Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials. Contributions include, but are not limited to, a variety of topics such as: • Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors • Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart • Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction • Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots. • Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing. • Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic • Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive