甘功雯

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个人信息

出生日期:1992-09-08

入职时间:2021-03-23

学历:博士研究生毕业

学位:工学博士学位

性别:男

在职信息:在岗

毕业院校:电子科技大学

所在单位:信息科学与技术学院

Broadband microwave magnetic and dielectric properties of Mg0.6Cd0.4Co0.05Fe1.95O4/MgTi2O4 composites with low loss for high-frequency antennae

影响因子:6.4
DOI码:10.1016/j.jmrt.2023.03.054
发表刊物:Journal of Materials Research and Technology
关键字:Mg0.6Cd0.4Co0.05Fe1.95O4/MgTi2O4 composites, magnetic and dielectric properties, high-frequency antenna, low loss
摘要:Two phase-based composites consisting of magnetic Mg0.6Cd0.4Co0.05Fe1.95O4 ferrite and dielectric magnesium titanate (MgTi2O4) were synthesized through a solid-state route. The structural and high-frequency magneto-dielectric properties of a series of (Mg0.6Cd0.4Co0.05Fe1.95O4)1-x+(MgTi2O4)x with x contents of 0.00, 0.06, 0.12, and 0.18 were studied. The phase structure was examined via X-ray diffraction (XRD), the results indicated the occurrence of both spinel MgTi2O4 and MgFe2O4 phases in various composites. Meanwhile, grain size and bulk density were lowered with the introduction of MgTi2O4, which also significantly weakened magnetic properties with decreased saturation magnetization (Ms) from 43.05 emu/g to 20 emu/g and coercivity (Hc) from 67.02 Oe to 3.35 Oe. In addition, the real permeability (μʹ) decreased and permittivity (ε') increased with increasing MgTi2O4 content over the wide frequency range of 0.5–5 GHz. Finally, a low order of magnitude (tan δμ ≈ 10-1 to 10−2 and tan δε  10-2 to 10−3) was obtained for all composites. These results demonstrated that the synthesized composites were expected to be an ideal candidate for high-frequency antenna loading materials.
论文类型:SCI
学科门类:工学
文献类型:J
卷号:24
页面范围:1363-1372
ISSN号:2238-7854
是否译文:
发表时间:2023-05-06
收录刊物:SCI
发布期刊链接:https://www.sciencedirect.com/science/article/pii/S2238785423005161?via%3Dihub

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