碳包覆磁性纳米粒子吸波机制及研究进展

The absorption mechanism for magnetic waves and research progress on carbon-coated magnetic nanoparticles

电磁波通讯技术的快速发展,为信息高效传输提供了很大便利,但随之而来高频电子辐射问题日益严重,电磁波吸收材料成为解决电磁辐射的关键。开发“薄、轻、宽、强”的高性能电磁波吸收材料是目前吸波领域研究的重点和热点。本文主要依据传输线理论,介绍了吸波材料的隐身机理,同时总结了吸波材料的制备方法。重点阐述了碳包覆磁性纳米粒子微波隐身材料的研究进展,并讨论了该类吸波材料的未来应用前景以及发展趋势,最后对碳包覆磁性纳米隐身材料的应用以及研发方向提出了几点建议。

The rapid development of electromagnetic wave(EMW)communication technology has greatly aided the transmission of information and,as a result,the problem of high frequency electronic radiation has become increasingly serious.EMW absorbing materials have become important for solving this problem.The development of high-performance EMW absorption materials with"thin,light,wide,strong"characteristics is the focus and of EMW absorption.According to transmission line theory,we introduce the stealth mechanism of microwave-absorbing materials and summarize their preparation methods.Research progress on carbon-coated magnetic nanoparticle microwave absorbing materials is highlighted and their future prospects and development trends are then discussed.Finally,several suggestions are made for the applications and development of carbon-coated magnetic materials.