羰基铁基复合材料的高效吸波-防腐双功能特性研究  

Investigation on the dual functional properties of efficient microwave absorption and anti-corrosion of carbonyl iron-based composites

作　　者：秦环宇 张敏 郭卿超 田威 张林博[3] QIN Huanyu;ZHANG Min;GUO Qingchao;TIAN Wei;ZHANG Linbo(National Key Laboratory of Electromagnetic Information Control and Effects,Shenyang Aircraft Design and Research Institute,Shengyang 410083,China;School of Information Science and Technology,Southwest Jiaotong University,Chengdu 611756,China;Key Laboratory of Multi-spectral Absorbing Materials and Structures of Ministry of Education,National Engineering Research Center of Electromagnetic Radiation Control Materials,School of Electronic Science and Engineering,University of Electronic Science and Technology of China,Chengdu 611731,China)

机构地区：[1]中国航空工业集团公司沈阳飞机设计研究所电磁信息控制与效应全国重点实验室,辽宁沈阳410083 [2]西南交通大学信息科学与技术学院,四川成都611756 [3]电子科技大学电子科学与工程学院国家电磁辐射控制材料工程技术研究中心多频谱吸波材料与结构教育部重点实验室,四川成都611731

出　　处：《电子元件与材料》2024年第6期660-667,共8页Electronic Components And Materials

基　　金：航空科学基金项目(20230047001006);National Key Laboratory Fund(SYS1W2023020105)。

摘　　要：随着5G先进通信技术和雷达探测技术的快速发展,电磁污染问题和特种装备的隐身突防问题日益突出。铁磁性吸波材料凭借高饱和磁化强度和优异的电磁波衰减能力已发展为应用较为广泛的隐身材料,然而,由于应用环境的多元化,铁磁性吸波材料的腐蚀问题严重制约其实际应用。本文采用多步液相反应,成功制备出具备优异吸波-防腐双功能的多级结构羰基铁基复合材料。该材料最低反射损耗高达-48.3 dB,有效吸收带宽达7.0 GHz。同时,其抗腐蚀性能也得到大幅改善,自腐蚀电压Ecorr显著右移至-0.22 V,自腐蚀电流密度Icorr下降至1.21×10^(-7)A/cm^(2)。为新型高性能铁磁性吸波材料的设计和工程应用提供了有力支撑,对于解决电磁污染和装备隐身问题具有重要意义。As 5G and radar technologies evolve swiftly,the issue of electromagnetic contamination and the need for rapid,covert protection of specialized gear is increasingly critical.Materials that absorb ferromagnetic waves have become popular stealth materials due to their strong saturation magnetization and superior capacity to reduce electromagnetic waves.However,the practical use of ferromagnetic wave-absorbing materials has been significantly limited by corrosion issues in varied application settings.This document details the successful creation of a multistage carbonyl iron matrix composite,noted for its superior wave-absorbing and corrosion-resistant features,through a complex liquid-phase reaction.The material's minimal reflection loss reaches as much as-48.3 dB,while its effective absorption bandwidth extends to 7.0 GHz.Concurrently,there has been a notable enhancement in its ability to resist corrosion,evidenced by a substantial shift in the self-corrosion voltage Ecorr to-0.22 V and a reduction in the self-corrosion current density Icorr to 1.21×10^(-7)A/cm^(2),bolstering the prospects for developing innovative high-efficiency ferromagnetic wave-absorbing substances.Addressing issues related to electromagnetic pollution and the stealth of equipment holds immense importance.

关 键 词：羰基铁 复合材料 微波吸收 防腐 阻抗匹配 

分 类 号：TB333[一般工业技术—材料科学与工程]