Optimization of electromagnetic matching of Ba1-xCaxFe11.4Co0.6O19 (0.2 ≤ x ≤ 0.8) ceramics for microwave absorption within 2.6–18 GHz

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

doi:10.1016/j.ceramint.2020.02.082

Optimization of electromagnetic matching of Ba_1-xCa_xFe_11.4Co_0.6O₁₉ (0.2 ≤ x ≤ 0.8) ceramics for microwave absorption within 2.6–18 GHz

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

School of Materials Sience and Engineering

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

10 Scopus citations

Abstract

The Ba_1-xCa_xFe_11.4Co_0.6O₁₉ (x = 0.0, 0.2, 0.4, 0.6, and 0.8) composites with wide-bandwidth and good absorption performance were prepared. The M_S of ceramics increases from about 62.4 to 83.4 emu g⁻¹ as x rises from 0 to 0.6, which demonstrates that the desirable magnetic properties of such ceramics is obtained by adjusting the content of Ca²⁺. A bandwidth of reflection loss (RL) below - 5 dB can be obtained for frequencies from 5.9 to 18 GHz with the Ba_0.4Ca_0.6Fe_11.4Co_0.6O₁₉ ceramic and a thickness of 2.0 mm, and a larger RL value of −34.1 dB is observed at 8.2 GHz for the Ba_0.6Ca_0.4Fe_11.4Co_0.6O₁₉ ceramic. These results suggest the developed ceramics could act as effective and wide-bandwidth microwave absorbing materials to meet commercial and military applications.

Original language	English
Pages (from-to)	13102-13106
Number of pages	5
Journal	Ceramics International
Volume	46
Issue number	9
DOIs	https://doi.org/10.1016/j.ceramint.2020.02.082
State	Published - 15 Jun 2020

Keywords

Calcium-based substitution
Microwave absorption
Reflection loss
Wide-bandwidth absorption

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10.1016/j.ceramint.2020.02.082

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title = "Optimization of electromagnetic matching of Ba1-xCaxFe11.4Co0.6O19 (0.2 ≤ x ≤ 0.8) ceramics for microwave absorption within 2.6–18 GHz",

abstract = "The Ba1-xCaxFe11.4Co0.6O19 (x = 0.0, 0.2, 0.4, 0.6, and 0.8) composites with wide-bandwidth and good absorption performance were prepared. The MS of ceramics increases from about 62.4 to 83.4 emu g−1 as x rises from 0 to 0.6, which demonstrates that the desirable magnetic properties of such ceramics is obtained by adjusting the content of Ca2+. A bandwidth of reflection loss (RL) below - 5 dB can be obtained for frequencies from 5.9 to 18 GHz with the Ba0.4Ca0.6Fe11.4Co0.6O19 ceramic and a thickness of 2.0 mm, and a larger RL value of −34.1 dB is observed at 8.2 GHz for the Ba0.6Ca0.4Fe11.4Co0.6O19 ceramic. These results suggest the developed ceramics could act as effective and wide-bandwidth microwave absorbing materials to meet commercial and military applications.",

keywords = "Calcium-based substitution, Microwave absorption, Reflection loss, Wide-bandwidth absorption",

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

note = "Publisher Copyright: {\textcopyright} 2020 Elsevier Ltd and Techna Group S.r.l.",

year = "2020",

month = jun,

day = "15",

doi = "10.1016/j.ceramint.2020.02.082",

language = "英语",

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TY - JOUR

T1 - Optimization of electromagnetic matching of Ba1-xCaxFe11.4Co0.6O19 (0.2 ≤ x ≤ 0.8) ceramics for microwave absorption within 2.6–18 GHz

AU - Feng, Gangli

AU - Zhou, Wancheng

AU - Li, Yiwen

AU - Luo, Fa

AU - Zhu, Dongmei

AU - Huang, Zhibin

AU - Zhou, Yingying

AU - Qing, Yuchang

PY - 2020/6/15

Y1 - 2020/6/15

N2 - The Ba1-xCaxFe11.4Co0.6O19 (x = 0.0, 0.2, 0.4, 0.6, and 0.8) composites with wide-bandwidth and good absorption performance were prepared. The MS of ceramics increases from about 62.4 to 83.4 emu g−1 as x rises from 0 to 0.6, which demonstrates that the desirable magnetic properties of such ceramics is obtained by adjusting the content of Ca2+. A bandwidth of reflection loss (RL) below - 5 dB can be obtained for frequencies from 5.9 to 18 GHz with the Ba0.4Ca0.6Fe11.4Co0.6O19 ceramic and a thickness of 2.0 mm, and a larger RL value of −34.1 dB is observed at 8.2 GHz for the Ba0.6Ca0.4Fe11.4Co0.6O19 ceramic. These results suggest the developed ceramics could act as effective and wide-bandwidth microwave absorbing materials to meet commercial and military applications.

AB - The Ba1-xCaxFe11.4Co0.6O19 (x = 0.0, 0.2, 0.4, 0.6, and 0.8) composites with wide-bandwidth and good absorption performance were prepared. The MS of ceramics increases from about 62.4 to 83.4 emu g−1 as x rises from 0 to 0.6, which demonstrates that the desirable magnetic properties of such ceramics is obtained by adjusting the content of Ca2+. A bandwidth of reflection loss (RL) below - 5 dB can be obtained for frequencies from 5.9 to 18 GHz with the Ba0.4Ca0.6Fe11.4Co0.6O19 ceramic and a thickness of 2.0 mm, and a larger RL value of −34.1 dB is observed at 8.2 GHz for the Ba0.6Ca0.4Fe11.4Co0.6O19 ceramic. These results suggest the developed ceramics could act as effective and wide-bandwidth microwave absorbing materials to meet commercial and military applications.

KW - Calcium-based substitution

KW - Microwave absorption

KW - Reflection loss

KW - Wide-bandwidth absorption

UR - https://www.scopus.com/pages/publications/85083903206

U2 - 10.1016/j.ceramint.2020.02.082

DO - 10.1016/j.ceramint.2020.02.082

M3 - 文章

AN - SCOPUS:85083903206

SN - 0272-8842

VL - 46

SP - 13102

EP - 13106

JO - Ceramics International

JF - Ceramics International

IS - 9

ER -

Optimization of electromagnetic matching of Ba_1-xCa_xFe_11.4Co_0.6O₁₉ (0.2 ≤ x ≤ 0.8) ceramics for microwave absorption within 2.6–18 GHz

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