Dielectric and microwave absorption properties of ZrB                         2                         /Al                         2                         O                         3                          composite ceramics

Yi Liu; Xiaolei Su; Xinhai He; Jie Xu; Junbo Wang; Yinhu Qu; Chong Fu; Yanlong Wang

doi:10.1007/s10854-018-0538-3

Dielectric and microwave absorption properties of ZrB ₂ /Al ₂ O ₃ composite ceramics

Yi Liu, Xiaolei Su, Xinhai He, Jie Xu, Junbo Wang, Yinhu Qu, Chong Fu, Yanlong Wang

Xi'an Polytechnic University

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

20 Scopus citations

Abstract

ZrB ₂ /Al ₂ O ₃ composite ceramics are prepared by hot-pressing sintering process. Influences of ZrB ₂ content and particle size on dielectric and microwave absorption properties of the ceramics are investigated. There are no chemical reactions between the ZrB ₂ and Al ₂ O ₃ powders during the sintering process at high temperature. The bulk densities of the ceramics decrease with the rising ZrB ₂ content and decreasing particle size. The ceramic with finer ZrB ₂ owns higher complex permittivity when the content of ZrB ₂ is fixed. As the ZrB ₂ content increases from 0 to 15 wt.%, the real part increases from 6.53 to 6.64 to 21.22–21.67 and the imaginary part rises from 0.61 to 0.7 to 4.83–4.49 in the frequency range of 8.2–12.4 GHz. The ceramic containing 15 wt.% ZrB ₂ presents the most favorable microwave absorption performance. For the ceramic with 1.4 mm thickness, the effective absorption bandwidth (≤ 10 dB) is achieved in the frequency range of 10.3–12 GHz, with a minimum RL value of − 15.6 dB at 10.8 GHz.

Original language	English
Pages (from-to)	2630-2637
Number of pages	8
Journal	Journal of Materials Science: Materials in Electronics
Volume	30
Issue number	3
DOIs	https://doi.org/10.1007/s10854-018-0538-3
State	Published - 15 Feb 2019
Externally published	Yes

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Liu, Y., Su, X., He, X., Xu, J., Wang, J., Qu, Y., Fu, C., & Wang, Y. (2019). Dielectric and microwave absorption properties of ZrB ₂ /Al ₂ O ₃ composite ceramics Journal of Materials Science: Materials in Electronics, 30(3), 2630-2637. https://doi.org/10.1007/s10854-018-0538-3

Liu, Yi ; Su, Xiaolei ; He, Xinhai et al. / Dielectric and microwave absorption properties of ZrB ₂ /Al ₂ O ₃ composite ceramics In: Journal of Materials Science: Materials in Electronics. 2019 ; Vol. 30, No. 3. pp. 2630-2637.

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title = " Dielectric and microwave absorption properties of ZrB 2 /Al 2 O 3 composite ceramics ",

abstract = " ZrB 2 /Al 2 O 3 composite ceramics are prepared by hot-pressing sintering process. Influences of ZrB 2 content and particle size on dielectric and microwave absorption properties of the ceramics are investigated. There are no chemical reactions between the ZrB 2 and Al 2 O 3 powders during the sintering process at high temperature. The bulk densities of the ceramics decrease with the rising ZrB 2 content and decreasing particle size. The ceramic with finer ZrB 2 owns higher complex permittivity when the content of ZrB 2 is fixed. As the ZrB 2 content increases from 0 to 15 wt.%, the real part increases from 6.53 to 6.64 to 21.22–21.67 and the imaginary part rises from 0.61 to 0.7 to 4.83–4.49 in the frequency range of 8.2–12.4 GHz. The ceramic containing 15 wt.% ZrB 2 presents the most favorable microwave absorption performance. For the ceramic with 1.4 mm thickness, the effective absorption bandwidth (≤ 10 dB) is achieved in the frequency range of 10.3–12 GHz, with a minimum RL value of − 15.6 dB at 10.8 GHz.",

author = "Yi Liu and Xiaolei Su and Xinhai He and Jie Xu and Junbo Wang and Yinhu Qu and Chong Fu and Yanlong Wang",

note = "Publisher Copyright: {\textcopyright} 2018, Springer Science+Business Media, LLC, part of Springer Nature.",

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Liu, Y, Su, X, He, X, Xu, J, Wang, J, Qu, Y, Fu, C & Wang, Y 2019, ' Dielectric and microwave absorption properties of ZrB ₂ /Al ₂ O ₃ composite ceramics ', Journal of Materials Science: Materials in Electronics, vol. 30, no. 3, pp. 2630-2637. https://doi.org/10.1007/s10854-018-0538-3

Dielectric and microwave absorption properties of ZrB ₂ /Al ₂ O ₃ composite ceramics . / Liu, Yi; Su, Xiaolei; He, Xinhai et al.
In: Journal of Materials Science: Materials in Electronics, Vol. 30, No. 3, 15.02.2019, p. 2630-2637.

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

TY - JOUR

T1 - Dielectric and microwave absorption properties of ZrB 2 /Al 2 O 3 composite ceramics

AU - Liu, Yi

AU - Su, Xiaolei

AU - He, Xinhai

AU - Xu, Jie

AU - Wang, Junbo

AU - Qu, Yinhu

AU - Fu, Chong

AU - Wang, Yanlong

PY - 2019/2/15

Y1 - 2019/2/15

N2 - ZrB 2 /Al 2 O 3 composite ceramics are prepared by hot-pressing sintering process. Influences of ZrB 2 content and particle size on dielectric and microwave absorption properties of the ceramics are investigated. There are no chemical reactions between the ZrB 2 and Al 2 O 3 powders during the sintering process at high temperature. The bulk densities of the ceramics decrease with the rising ZrB 2 content and decreasing particle size. The ceramic with finer ZrB 2 owns higher complex permittivity when the content of ZrB 2 is fixed. As the ZrB 2 content increases from 0 to 15 wt.%, the real part increases from 6.53 to 6.64 to 21.22–21.67 and the imaginary part rises from 0.61 to 0.7 to 4.83–4.49 in the frequency range of 8.2–12.4 GHz. The ceramic containing 15 wt.% ZrB 2 presents the most favorable microwave absorption performance. For the ceramic with 1.4 mm thickness, the effective absorption bandwidth (≤ 10 dB) is achieved in the frequency range of 10.3–12 GHz, with a minimum RL value of − 15.6 dB at 10.8 GHz.

AB - ZrB 2 /Al 2 O 3 composite ceramics are prepared by hot-pressing sintering process. Influences of ZrB 2 content and particle size on dielectric and microwave absorption properties of the ceramics are investigated. There are no chemical reactions between the ZrB 2 and Al 2 O 3 powders during the sintering process at high temperature. The bulk densities of the ceramics decrease with the rising ZrB 2 content and decreasing particle size. The ceramic with finer ZrB 2 owns higher complex permittivity when the content of ZrB 2 is fixed. As the ZrB 2 content increases from 0 to 15 wt.%, the real part increases from 6.53 to 6.64 to 21.22–21.67 and the imaginary part rises from 0.61 to 0.7 to 4.83–4.49 in the frequency range of 8.2–12.4 GHz. The ceramic containing 15 wt.% ZrB 2 presents the most favorable microwave absorption performance. For the ceramic with 1.4 mm thickness, the effective absorption bandwidth (≤ 10 dB) is achieved in the frequency range of 10.3–12 GHz, with a minimum RL value of − 15.6 dB at 10.8 GHz.

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JO - Journal of Materials Science: Materials in Electronics

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Liu Y, Su X, He X, Xu J, Wang J, Qu Y et al. Dielectric and microwave absorption properties of ZrB ₂ /Al ₂ O ₃ composite ceramics Journal of Materials Science: Materials in Electronics. 2019 Feb 15;30(3):2630-2637. doi: 10.1007/s10854-018-0538-3

Dielectric and microwave absorption properties of ZrB ₂ /Al ₂ O ₃ composite ceramics

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