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

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

Research output: Contribution to journalArticlepeer-review

31 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 languageEnglish
Pages (from-to)773-781
JournalJournal of the American Ceramic Society
Volume101
Issue number2
Early online date7 Oct 2017
DOIs
Publication statusPublished - 1 Feb 2018

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