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Journal of Materials Science: Materials in Electronics
Erschienen in: Journal of Materials Science: Materials in Electronics 13/2020

30.05.2020

Novel series of MLa2WO7(M = Sr, Ba) microwave dielectric ceramic systems with monoclinic structures

verfasst von: Xianjie Zhou, Huanfu Zhou, Qiang Wu, Xiaowen Luan, Sang Hu, Jiji Deng, Shixuan Li, Kuangguo Wang, Xiuli Chen

Erschienen in: Journal of Materials Science: Materials in Electronics | Ausgabe 13/2020

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Abstract

Novel series of MLa2WO7(M = Sr, Ba) ceramics were prepared via a traditional solid-state reaction method. The sintering characteristic, crystal structures, micromorphology and microwave dielectric performances of systems were systematically investigated. X-ray diffraction (XRD) and Rietveld refinement display that both SrLa2WO7(SLW) and BaLa2WO7(BLW) ceramics are monoclinic structure with Fdd (No. 14) space group. SLW and BLW ceramics have high relative density (more than 94%). The SLW ceramics sintered at 1400 °C exhibited good microwave dielectric performances with Ɛr = 23.2, Q × f = 29,720 GHz, τf = − 127 ppm/°C and the BLW ceramics sintered at 1300 °C had excellent properties of Ɛr = 25.3, Q × f = 36,473 GHz, τf  = − 108 ppm/°C. These results show that MLa2WO7(M = Sr, Ba) ceramics could be candidates for microwave devices.
Vorheriger Artikel Preparation of an O/N/P/S co-doped hierarchical porous carbon material derived from snake skin for supercapacitors
Nächster Artikel Nitrogen source-mediated cocoon silk-derived N, O-doped porous carbons for high performance symmetric supercapacitor

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Metadaten
Titel
Novel series of MLa2WO7(M = Sr, Ba) microwave dielectric ceramic systems with monoclinic structures
verfasst von
Xianjie Zhou
Huanfu Zhou
Qiang Wu
Xiaowen Luan
Sang Hu
Jiji Deng
Shixuan Li
Kuangguo Wang
Xiuli Chen
Publikationsdatum
30.05.2020
Verlag
Springer US
Erschienen in
Journal of Materials Science: Materials in Electronics / Ausgabe 13/2020
Print ISSN: 0957-4522
Elektronische ISSN: 1573-482X
DOI
https://doi.org/10.1007/s10854-020-03633-y

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