基于不同形貌硫化钴材料的吸波性能研究
Research on electromagnetic wave absorbing performance of cobalt sulfide materials with different morphologies
刘慧 1史圣兵 1祝民鹏1
作者信息
- 1. 32201 部队,吉林 白城 137001
- 折叠
摘要
为了进一步探究硫化钴(CoS)材料在吸波领域的发展潜力,为后续制备CoS基多元复合材料提供参考,采用溶剂热法分别制备了球状、纳米颗粒状、花状3 种不同形貌的CoS材料,并对 3 种CoS材料的微观形貌、物相结构和吸波性能进行表征分析.结果表明:相较于纳米颗粒状和花状,球状CoS具有更为复杂的 3D多孔结构且呈现出良好的阻抗匹配,更利于实现对入射电磁波的多重散射消耗,在填料量同为 40wt%时,球状 CoS 的最小反射损耗为-44.59 dB,有效吸波带宽最大可达3.6 GHz,对应匹配厚度为1.5 mm.3 种不同形貌的CoS材料吸波性能的研究为后续制备新型高效的CoS基多元复合吸波材料提供了良好的参考价值.
Abstract
In order to further explore the development potential of cobalt sulfide(CoS)materials in the field of electromagnetic wave absorption,and provide reference for the subsequent preparation of CoS based multi-element composites,spherical,nanoparticle and flower-shaped CoS materials were prepared by solvothermal method.The microscopic morphology,phase structure and wave absorption properties of the three kinds of CoS materials were characterized and analyzed.The results show that,compared with the nanoparticles and flowers,the spherical CoS has a more complex 3D porous structure and exhibits good impedance matching,which is more conducive to realizing multiple scattering consumption of incident electromagnetic waves.When the doping amount is both 40wt%,the minimum reflection loss of spherical CoS is-44.59 dB,the maximum effective absorption bandwidth is 3.6 GHz,and the corresponding matching thickness is 1.5 mm.The study of the wave absorbing properties of three kinds of CoS materials with different morphologies provides a good reference for the subsequent preparation of new and efficient CoS based multi-element composite wave absorbing materials.
关键词
吸波材料/硫化钴/吸波性能/电磁参数/反射损耗Key words
absorbing materials/cobalt sulfide/absorption performance/electromagnetic parameter/reflection loss引用本文复制引用
出版年
2024
NETL
NSTL
万方数据