Abstract
Ce2[Zr1-x(Zn1/3Nb2/3)x]3(MoO4)9 (CZ1-x(ZN)xM) (x = 0.02–0.08) compounds were successfully prepared to scientifically examine the effect of (Zn1/3Nb2/3)4+ doping on phase composition, microstructures, and properties. The XRD results showed that all compounds formed a pure phase with the space group of R-3c. SEM results indicated that all compounds were compact at 675 °C, and the lattice parameters and average grain size decreased with doping. Performance analysis illustrated that εr was closely related to the polarizability, and Q∙f was affected by the lattice energy of the Mo–O bond. The τf was maintained at an excellent level. Far-infrared analysis indicated that the major dielectric contribution to CZ1-x(ZN)xM ceramics was related to the absorption of phonon oscillation. The optimum properties (εr = 10.72, Q∙f = 59,381 GHz, τf = −11.48 ppm/°C) were obtained when x = 0.04.
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