铁氧体及其复合吸波材料的研究进展

吸波材料既可减少电磁污染，又能达到军事装备隐身的目的，要求具有“薄、轻、宽、强”的特点。铁氧体吸波材料阻抗匹配较好，吸收强，研究早且使用多。但铁氧体吸波材料的密度大、吸收频带窄、热稳定性差的缺点限制了其应用。通过离子取代，设计微观形貌，与碳材料、高分子材料、MXene等进行复合，可有效提高铁氧体吸波材料的综合性能。本文总结了改善铁氧体吸波材料性能的主要方法及近几年的研究进展，并展望了进一步的研究方向。 

Research progress of ferrite and its composite absorbing materials

Absorbing materials can not only reduce electromagnetic pollution, but also achieve the purpose of military equipment stealth, which require the characteristics of “thin, light, wide, strong”. Ferrite absorbing materials have good impedance matching, strong absorption, and have been studied early and used many times. However, the disadvantages of high density, narrow absorption band and poor thermal stability limit the application of ferrite absorbing materials. By substituting ions, designing micromorphology, synthetizing composites of ferrite and carbon materials, polymer materials or MXene, the comprehensive properties of ferrite absorbing materials can be improved effectively. In this paper, main methods to improve the properties of ferrite absorbing materials and the research progress in recent years are summarized, and the further research direction is prospected.