Structure, magnetoelectric properties and microwave absorption properties of Dy-doped Z-type hexaferrite Ba3Co2Fe24-xDyxO41

被引:12
作者
Lei, Yu [1 ,2 ]
Wang, Wenfeng F. [1 ]
Tan, Guoguo [1 ]
Shang, Xiaoyun [1 ]
Huang, Xiangyun [1 ]
Man, Qikui K. [2 ]
机构
[1] Chinese Acad Sci, Ganjiang Innovat Acad, Ganzhou 341000, Peoples R China
[2] Univ Sci & Technol China, Hefei 230026, Peoples R China
关键词
ABSORBING PROPERTIES; COMPOSITE; GRAPHENE; FERRITE; DESIGN; NANOCOMPOSITES; ATTENUATION; NI;
D O I
10.1007/s10854-023-09975-7
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Rare earth dysprosium-doped Z-type hexaferrite were synthesized by the sol-gel method. The synthesized material has a uniform particle size and a typical hexagonal flake shape. The research results show that the samples have excellent soft magnetic properties, and the saturation magnetization of the samples increases gradually with the increase of the doping amount of Dy. In addition, it is also found that the doping of trace dysprosium has a significant effect on the improvement of microwave absorption properties of Z-type hexaferrite. Specifically, when the doping amount is x = 0.05, the sample not only exhibits an excellent reflection loss value of -52.6dB at 5.25 GHz, but also has a maximum effective absorption bandwidth (RL<-10dB) of 6.6 GHz, encompassing both C-band and X-band. When the amount of doping is excessive, an impurity phase will be generated, and the magnetic properties and microwave absorption properties of the material will be reduced, indicating that doping an appropriate amount of Dy3+ will improve the microwave absorption property of Z-type hexaferrite.
引用
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页数:10
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