Abstract
Ce2[Zr1−x(Zn1/3Ta2/3)x]3(MoO4)9 compounds were successfully prepared and researched. Phase analysis, microstructures and properties were studied scientifically by XRD, SEM and network analyzer, respectively. Rietveld refinement of all compositions confirmed that a single phase in trigonal crystal structure with R-3c space group was obtained. Infrared reflection spectrum results showed the permittivity was related to the absorption of phonon oscillation. SEM images revealed that the average grain size decreased with the increase of (Zn1/3Ta2/3)4+. Microwave dielectric properties analysis indicated that the permittivity was related to the polarizability, Mo-O made a more significant contribution to the Q × f , and τf was related to the octahedral distortion. The optimum properties (εr = 10.77, Q × f = 74,682 GHz, τf = −12.84 ppm/°C) were obtained when x = 0.04 sintered at 750 °C.
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