Cobalt-substituted Ba0.8Ca0.2Fe12O19 ceramics for wide-bandwidth microwave absorption within 2.6–18 GHz

Gangli Feng; Wancheng Zhou; Yiwen Li; Yuchang Qing; Shichang Duan; Hongyao Jia; Fa Luo; Dongmei Zhu; Zhibin Huang; Yingying Zhou

doi:10.1016/j.ceramint.2019.07.140

Cobalt-substituted Ba_0.8Ca_0.2Fe₁₂O₁₉ ceramics for wide-bandwidth microwave absorption within 2.6–18 GHz

Gangli Feng, Wancheng Zhou, Yiwen Li, Yuchang Qing, Shichang Duan, Hongyao Jia, Fa Luo, Dongmei Zhu, Zhibin Huang, Yingying Zhou

材料学院

科研成果: 期刊稿件 › 文章 › 同行评审

7 引用（Scopus）

摘要

The electromagnetic properties of Ba_0.8Ca_0.2Fe_12-xCo_xO₁₉ (BCFCO, x = 0.0, 0.6, 0.8, 1.0 and 1.2) ceramics prepared by pressureless sintering were investigated within 2.6–18 GHz. The Co³⁺-substituted ceramics show the influence of the Co³⁺ ions enhanced the complex permeability as compared to the without Co³⁺ ions. The magnetic resonance behavior of BCFCO ceramics mainly depends on the Co³⁺ content, and the μ-f spectra show enhanced resonance absorption peaks when x increases from 0.6 to 0.8. A refection loss exceeding −5 dB (68.4% absorption) can be obtained in frequency range of 6.0–18 GHz for the Ba_0.8Ca_0.2Fe_11.2Co_0.8O₁₉ ceramics with a thickness of 1.5 mm. This suggests that the Ba_0.8Ca_0.2Fe_11.2Co_0.8O₁₉ ceramic can be used as an effective microwave absorber with a wide bandwidth.

源语言	英语
页（从-至）	21491-21496
页数	6
期刊	Ceramics International
卷	45
期	17
DOI	https://doi.org/10.1016/j.ceramint.2019.07.140
出版状态	已出版 - 1 12月 2019

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10.1016/j.ceramint.2019.07.140

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@article{e0208bcaf1ef44aa9361738288163cca,

title = "Cobalt-substituted Ba0.8Ca0.2Fe12O19 ceramics for wide-bandwidth microwave absorption within 2.6–18 GHz",

abstract = "The electromagnetic properties of Ba0.8Ca0.2Fe12-xCoxO19 (BCFCO, x = 0.0, 0.6, 0.8, 1.0 and 1.2) ceramics prepared by pressureless sintering were investigated within 2.6–18 GHz. The Co3+-substituted ceramics show the influence of the Co3+ ions enhanced the complex permeability as compared to the without Co3+ ions. The magnetic resonance behavior of BCFCO ceramics mainly depends on the Co3+ content, and the μ-f spectra show enhanced resonance absorption peaks when x increases from 0.6 to 0.8. A refection loss exceeding −5 dB (68.4% absorption) can be obtained in frequency range of 6.0–18 GHz for the Ba0.8Ca0.2Fe11.2Co0.8O19 ceramics with a thickness of 1.5 mm. This suggests that the Ba0.8Ca0.2Fe11.2Co0.8O19 ceramic can be used as an effective microwave absorber with a wide bandwidth.",

keywords = "Microwave absorber, Reflection loss, Wide bandwidth",

author = "Gangli Feng and Wancheng Zhou and Yiwen Li and Yuchang Qing and Shichang Duan and Hongyao Jia and Fa Luo and Dongmei Zhu and Zhibin Huang and Yingying Zhou",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier Ltd and Techna Group S.r.l.",

year = "2019",

month = dec,

day = "1",

doi = "10.1016/j.ceramint.2019.07.140",

language = "英语",

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TY - JOUR

T1 - Cobalt-substituted Ba0.8Ca0.2Fe12O19 ceramics for wide-bandwidth microwave absorption within 2.6–18 GHz

AU - Feng, Gangli

AU - Zhou, Wancheng

AU - Li, Yiwen

AU - Qing, Yuchang

AU - Duan, Shichang

AU - Jia, Hongyao

AU - Luo, Fa

AU - Zhu, Dongmei

AU - Huang, Zhibin

AU - Zhou, Yingying

PY - 2019/12/1

Y1 - 2019/12/1

N2 - The electromagnetic properties of Ba0.8Ca0.2Fe12-xCoxO19 (BCFCO, x = 0.0, 0.6, 0.8, 1.0 and 1.2) ceramics prepared by pressureless sintering were investigated within 2.6–18 GHz. The Co3+-substituted ceramics show the influence of the Co3+ ions enhanced the complex permeability as compared to the without Co3+ ions. The magnetic resonance behavior of BCFCO ceramics mainly depends on the Co3+ content, and the μ-f spectra show enhanced resonance absorption peaks when x increases from 0.6 to 0.8. A refection loss exceeding −5 dB (68.4% absorption) can be obtained in frequency range of 6.0–18 GHz for the Ba0.8Ca0.2Fe11.2Co0.8O19 ceramics with a thickness of 1.5 mm. This suggests that the Ba0.8Ca0.2Fe11.2Co0.8O19 ceramic can be used as an effective microwave absorber with a wide bandwidth.

AB - The electromagnetic properties of Ba0.8Ca0.2Fe12-xCoxO19 (BCFCO, x = 0.0, 0.6, 0.8, 1.0 and 1.2) ceramics prepared by pressureless sintering were investigated within 2.6–18 GHz. The Co3+-substituted ceramics show the influence of the Co3+ ions enhanced the complex permeability as compared to the without Co3+ ions. The magnetic resonance behavior of BCFCO ceramics mainly depends on the Co3+ content, and the μ-f spectra show enhanced resonance absorption peaks when x increases from 0.6 to 0.8. A refection loss exceeding −5 dB (68.4% absorption) can be obtained in frequency range of 6.0–18 GHz for the Ba0.8Ca0.2Fe11.2Co0.8O19 ceramics with a thickness of 1.5 mm. This suggests that the Ba0.8Ca0.2Fe11.2Co0.8O19 ceramic can be used as an effective microwave absorber with a wide bandwidth.

KW - Microwave absorber

KW - Reflection loss

KW - Wide bandwidth

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U2 - 10.1016/j.ceramint.2019.07.140

DO - 10.1016/j.ceramint.2019.07.140

M3 - 文章

AN - SCOPUS:85069230108

SN - 0272-8842

VL - 45

SP - 21491

EP - 21496

JO - Ceramics International

JF - Ceramics International

IS - 17

ER -

Cobalt-substituted Ba0.8Ca0.2Fe12O19 ceramics for wide-bandwidth microwave absorption within 2.6–18 GHz

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Cobalt-substituted Ba_0.8Ca_0.2Fe₁₂O₁₉ ceramics for wide-bandwidth microwave absorption within 2.6–18 GHz