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Dielectric–magnetic synergistic design of Ti3C2Tx@C/NiZn ferrite composite for effective microwave absorption performance
Applied Surface Science ( IF 6.3 ) Pub Date : 2023-05-29 , DOI: 10.1016/j.apsusc.2023.157602
Huying Yan , Yang Guo , Xingzhi Bai , Jiawei Qi , Xiangyu Zhao , Haipeng Lu , Longjiang Deng

Developing a lightweight microwave absorbing materials (MAMs) with high absorption capacity at low thickness is a perennial challenge in materials engineering. Herein, a light Ti3C2Tx@Carbon/NiZn ferrite (Ti3C2Tx@C/NZFO) composite is designed by synergistically incorporating dielectric–magnetic components. The inclusion of C and NZFO enhances the interfacial polarization of the substrate and optimizes its impedance matching. Additionally, the presence of NZFO also produces magnetic loss mechanisms, such as natural and exchange resonance, as well as eddy current loss. Spontaneously, Ti3C2Tx@C/NZFO composite achieved a minimum reflection loss (RL) of –44.7 dB at 12.5 GHz and displayed an effective absorption bandwidth of 4.27 GHz (13.53–17.8 GHz) at a thin thickness of 1.3 mm (RL < –10 dB). Besides, the Ti3C2Tx@C/NZFO composite exhibits the smallest radar cross–section (RCS) value, which further corroborates its outstanding microwave absorption performance. This research offers a groundbreaking approach to designing lightweight and thin MAMs.



中文翻译:

Ti3C2Tx@C/NiZn 铁氧体复合材料的介磁协同设计以实现有效的微波吸收性能

开发具有高吸收能力和低厚度的轻质微波吸收材料 (MAM) 是材料工程中的长期挑战。在此,轻型 Ti 3 C 2 T x @Carbon/NiZn 铁氧体 (Ti 3 C 2 T x @C/NZFO) 复合材料是通过协同结合介电-磁性组件设计的。包含 C 和 NZFO 增强了基板的界面极化并优化了其阻抗匹配。此外,NZFO 的存在还会产生磁损耗机制,例如自然和交换共振,以及涡流损耗。自发地,Ti 3 C 2 T x@C/NZFO 复合材料在 12.5 GHz 时实现了 –44.7 dB 的最小反射损耗 ( RL ),并且在 1.3 mm 的薄厚度 ( RL  < –10 dB)下显示出 4.27 GHz (13.53–17.8 GHz) 的有效吸收带宽。此外,Ti 3 C 2 T x @C/NZFO复合材料具有最小的雷达截面(RCS)值,这进一步证实了其出色的微波吸收性能。这项研究为设计轻薄的 MAM 提供了一种突破性的方法。

更新日期:2023-06-01
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