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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

Equivalent permeability and permittivity of Sm substituted Mg-Cd ferrites for high-frequency applications

影响因子:6.2
DOI码:10.1016/j.jallcom.2019.153059
发表刊物:Journal of Alloys and Compounds
关键字:Mg0.8Cd0.2Fe2-xSmxO4 compositesEnhanced magnetizationEquivalent permeability and permittivityLow loss
摘要:The effects of Sm3+ ion substitution on the magnetic and dielectric properties of Mg ferrites (Mg0.8Cd0.2Fe2-xSmxO4) with 2.5 wt% Bi2O3 were investigated for use as high-frequency antenna substrates. Various concentrations of Sm3+ ions (x = 0.00, 0.02, 0.04, 0.06, 0.08 and 0.10) were employed to modify the permeability (μ′) and permittivity (ε′) of the ferrites. Experimentally, the composites synthesized using the conventional solid-state reaction method exhibited equal μ′ and ε′ (x = 0.10, μ′ ≈ 23H/m, ε′ ≈ 25 F/m) over a long frequency band covering 1 MHz–100 MHz. Low loss tangents (dielectric loss tanδε≈ 0.004 and magnetic loss tanδμ≈ 0.038) were also obtained over the same frequency range. Furthermore, a saturation magnetization of up to 24.45 emu/g and coercivity of up to 36 Oe were achieved when x increased to 0.10, indicating that the magnetization of the samples was enhanced. The excellent properties obtained in the Sm3+ substituted Mg ferrites suggest that they could be promising candidates for modern high-frequency antenna substrates.
论文类型:SCI
学科门类:工学
文献类型:J
卷号:819
页面范围:153059
ISSN号:0925-8388
是否译文:
发表时间:2020-01-28
收录刊物:SCI

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