Low-firing and temperature stable microwave dielectric ceramics: Ba2LnV3O11 (Ln = Nd, Sm)

Chunchun Li; Huaicheng Xiang; Minyu Xu; Jibran Khaliq; Junqi Chen; Liang Fang

doi:10.1111/jace.15251

Low-firing and temperature stable microwave dielectric ceramics: Ba2LnV3O11 (Ln = Nd, Sm)

Chunchun Li, Huaicheng Xiang, Minyu Xu, Jibran Khaliq, Junqi Chen, Liang Fang

Mechanical and Construction Engineering

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

29 Citations (Scopus)

Abstract

Low-firing and temperature stable microwave dielectric ceramics of Ba2LnV3O11 (Ln = Nd, Sm) were prepared by solid-state reaction. X-ray diffraction (XRD) and scanning electron microscopy (SEM) were used to investigate the phase purity, crystal structure, sintering behavior, and microstructure. The XRD patterns indicated that Ba2LnV3O11 (Ln =Nd, Sm) ceramics belong to monoclinic crystal system with P21/c space group in the whole sintering temperature range (800-900 °C). Both ceramics could be well densified at 880 °C for 4 h with relative densities higher than 96%. The Ba2LnV3O11 (Ln =Nd, Sm) samples sintered at 880 °C for 4 h exhibited excellent microwave dielectric properties: εr = 12.05, Q×f = 23,010 GHz, τf = –7.7 ppm/oC, and εr = 12.19, Q×f = 27,120 GHz, τf = –16.2 ppm/oC, respectively. Besides, Ba2LnV3O11 (Ln =Nd, Sm) ceramics could be well co-fired with the silver electrode at 880 °C.

Original language	English
Pages (from-to)	773-781
Journal	Journal of the American Ceramic Society
Volume	101
Issue number	2
Early online date	7 Oct 2017
DOIs	https://doi.org/10.1111/jace.15251
Publication status	Published - 1 Feb 2018

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10.1111/jace.15251

http://nrl.northumbria.ac.uk/32181/

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@article{6bcbe6963c074642887d36473bf74f4e,

title = "Low-firing and temperature stable microwave dielectric ceramics: Ba2LnV3O11 (Ln = Nd, Sm)",

abstract = "Low-firing and temperature stable microwave dielectric ceramics of Ba2LnV3O11 (Ln = Nd, Sm) were prepared by solid-state reaction. X-ray diffraction (XRD) and scanning electron microscopy (SEM) were used to investigate the phase purity, crystal structure, sintering behavior, and microstructure. The XRD patterns indicated that Ba2LnV3O11 (Ln =Nd, Sm) ceramics belong to monoclinic crystal system with P21/c space group in the whole sintering temperature range (800-900 °C). Both ceramics could be well densified at 880 °C for 4 h with relative densities higher than 96%. The Ba2LnV3O11 (Ln =Nd, Sm) samples sintered at 880 °C for 4 h exhibited excellent microwave dielectric properties: εr = 12.05, Q×f = 23,010 GHz, τf = –7.7 ppm/oC, and εr = 12.19, Q×f = 27,120 GHz, τf = –16.2 ppm/oC, respectively. Besides, Ba2LnV3O11 (Ln =Nd, Sm) ceramics could be well co-fired with the silver electrode at 880 °C.",

keywords = "Ba2LnV3O11 (Ln =Nd, Sm), Microwave dielectric properties, LTCC, Chemical compatibility",

author = "Chunchun Li and Huaicheng Xiang and Minyu Xu and Jibran Khaliq and Junqi Chen and Liang Fang",

year = "2018",

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doi = "10.1111/jace.15251",

language = "English",

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pages = "773--781",

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TY - JOUR

T1 - Low-firing and temperature stable microwave dielectric ceramics: Ba2LnV3O11 (Ln = Nd, Sm)

AU - Li, Chunchun

AU - Xiang, Huaicheng

AU - Xu, Minyu

AU - Khaliq, Jibran

AU - Chen, Junqi

AU - Fang, Liang

PY - 2018/2/1

Y1 - 2018/2/1

N2 - Low-firing and temperature stable microwave dielectric ceramics of Ba2LnV3O11 (Ln = Nd, Sm) were prepared by solid-state reaction. X-ray diffraction (XRD) and scanning electron microscopy (SEM) were used to investigate the phase purity, crystal structure, sintering behavior, and microstructure. The XRD patterns indicated that Ba2LnV3O11 (Ln =Nd, Sm) ceramics belong to monoclinic crystal system with P21/c space group in the whole sintering temperature range (800-900 °C). Both ceramics could be well densified at 880 °C for 4 h with relative densities higher than 96%. The Ba2LnV3O11 (Ln =Nd, Sm) samples sintered at 880 °C for 4 h exhibited excellent microwave dielectric properties: εr = 12.05, Q×f = 23,010 GHz, τf = –7.7 ppm/oC, and εr = 12.19, Q×f = 27,120 GHz, τf = –16.2 ppm/oC, respectively. Besides, Ba2LnV3O11 (Ln =Nd, Sm) ceramics could be well co-fired with the silver electrode at 880 °C.

AB - Low-firing and temperature stable microwave dielectric ceramics of Ba2LnV3O11 (Ln = Nd, Sm) were prepared by solid-state reaction. X-ray diffraction (XRD) and scanning electron microscopy (SEM) were used to investigate the phase purity, crystal structure, sintering behavior, and microstructure. The XRD patterns indicated that Ba2LnV3O11 (Ln =Nd, Sm) ceramics belong to monoclinic crystal system with P21/c space group in the whole sintering temperature range (800-900 °C). Both ceramics could be well densified at 880 °C for 4 h with relative densities higher than 96%. The Ba2LnV3O11 (Ln =Nd, Sm) samples sintered at 880 °C for 4 h exhibited excellent microwave dielectric properties: εr = 12.05, Q×f = 23,010 GHz, τf = –7.7 ppm/oC, and εr = 12.19, Q×f = 27,120 GHz, τf = –16.2 ppm/oC, respectively. Besides, Ba2LnV3O11 (Ln =Nd, Sm) ceramics could be well co-fired with the silver electrode at 880 °C.

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KW - LTCC

KW - Chemical compatibility

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