基于LaCoFeO 3Co x Fe y的高性能电磁波吸收材料研究

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晏金辉1，叶升言1，张明明1，杨金培1，马 瑞

关键词：电磁波材料；LaCoFeO3CoxFey；磁损耗；电磁波吸收性能

中图分类号：TB34

文献标识码：A

DOI： 10.14106/j.cnki.1001-2028.2025.1540

引用格式：晏金辉，叶升言，张明明， 等. 于LaCoFeO3CoxFey的高性能电磁波吸收材料研究 [J]. 电子元件与材料， 2025， 44（1）： 15-23.

Reference format： YAN Jinhui， YE Shengyan， ZHANNG Mingming， et al. High performance electromagnetic wave absorbing materials based on LaCoFeO3CoxFey [J]. Electronic Components and Materials， 2025， 44（1）： 15-23.

High performance electromagnetic wave absorbing materials based on

LaCoFeO3CoxFey

YAN Jinhui1， YE Shengyan1， ZHANNG Mingming1， YANG Jinpei1， MA Rui2

（1. Dehong Power Supply Bureau of Yunnan Power Grid Co.， Ltd.， Dehong Prefecture 678499， Yunnan Province，

China; 2. Kunming Nengren Technology Co.， Ltd.， Kunming 650000， China）

Abstract： To improve the electromagnetic signal recognition distance of the defect sensing device for distribution network lines， an electromagnetic wave absorbing material based on LaCoFeO3CoxFey was proposed. Nano CoxFey alloy particles were uniformly embedded on the surface of the perovskite oxide LaCoFeO3 matrix through a dissolution strategy， which can effectively avoid agglomeration effects and optimize the electromagnetic wave absorption performance of the material. The experimental results show that with the increase of cobalt nitrate addition， the content of Fe0 and Co0 in the material decreases， the conductivity first increases and then decreases， while the attenuation constant significantly increases and the radar cross-section value decreases. Especially， when the amount of cobalt nitrate doption is 0.5 mmol， the attenuation constant of the material reaches 143 at a frequency of 10 GHz， demonstrating excellent electromagnetic wave absorption performance. This electromagnetic wave absorbing material can be applied in the defect sensing devices for distribution network lines， which can effectively improve the electromagnetic signal induction distance of the device. It is of great significance for improvement of the electronic equipment and electromagnetic signal recognition technology.

Keywords： electromagnetic wave materials; LaCoFeO3CoxFey; magnetic loss; electromagnetic wave absorption performance

电磁波吸收材料是指能吸收投射到其表面的电磁波能量，并将其转变为热能，进而实现对电磁波吸收的一类材料。（剩余11037字）