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Research Article | Open Access

Effects of (Mg1/3Sb2/3)4+ substitution on the structure and microwave dielectric properties of Ce2Zr3(MoO4)9 ceramics

Xu ZHOUa, Lintao LIUa, Jiajia SUNb, Ningkang ZHANGb, Huazhang SUNb, Haitao WUa( ), Wenhong TAOb( )
School of Environmental and Material Engineering, Yantai University, Yantai 264005, China
School of Materials Science and Engineering, University of Jinan, Jinan 250022, China
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Abstract

Ce2[Zr1-x(Mg1/3Sb2/3)x]3(MoO4)9 (0.02 ≤ x ≤ 0.10) ceramics were prepared by the traditional solid-state method. A single phase, belonging to the space group of R3¯c, was detected by using X-ray diffraction at the sintering temperatures ranging from 700 to 850 ℃. The microstructures of samples were examined by applying scanning electron microscopy (SEM). The crystal structure refinement of these samples was investigated in detail by performing the Rietveld refinement method. The intrinsic properties were calculated and explored via far-infrared reflectivity spectroscopy. The correlations between the chemical bond parameters and microwave dielectric properties were calculated and analyzed by Phillips-van Vechten-Levine (P-V-L) theory. Ce2[Zr0.94(Mg1/3Sb2/3)0.06]3(MoO4)9 ceramics with excellent dielectric properties were sintered at 725 ℃ for 6 h (εr = 10.37, Q×f = 71,748 GHz, and τf = -13.6 ppm/℃, εr is the dielectric constant, Q×f is the quality factor, and τf is the temperature coefficient of resonant frequency).

Keywords

crystal structurePhillips-van Vechten-Levine (P-V-L) theorymicrowave dielectric property(Mg1/3Sb2/3) doping

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Journal of Advanced Ceramics
Volume 10 Issue 4,
August 2021
Pages 778-789
DOI: 10.1007/s40145-021-0472-3
Cite this article:
ZHOU X, LIU L, SUN J, et al. Effects of (Mg1/3Sb2/3)4+ substitution on the structure and microwave dielectric properties of Ce2Zr3(MoO4)9 ceramics. Journal of Advanced Ceramics, 2021, 10(4): 778-789. https://doi.org/10.1007/s40145-021-0472-3

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Received: 02 November 2020
Revised: 19 January 2021
Accepted: 06 March 2021
Published: 05 August 2021
© The Author(s) 2021

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