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

School of Materials Sience and Engineering

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

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.

Original language	English
Pages (from-to)	21491-21496
Number of pages	6
Journal	Ceramics International
Volume	45
Issue number	17
DOIs	https://doi.org/10.1016/j.ceramint.2019.07.140
State	Published - 1 Dec 2019

Keywords

Microwave absorber
Reflection loss
Wide bandwidth

Access to Document

10.1016/j.ceramint.2019.07.140

Cite this

@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",

volume = "45",

pages = "21491--21496",

journal = "Ceramics International",

issn = "0272-8842",

publisher = "Elsevier Ltd",

number = "17",

}

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

UR - http://www.scopus.com/inward/record.url?scp=85069230108&partnerID=8YFLogxK

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

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this

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

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this

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