Effect of (Zn1/3Nb2/3)4+ co-substitution on the microwave dielectric properties of Ce2Zr3(MoO4)9 ceramics
Effect of (Zn1/3Nb2/3)4+ co-substitution on the microwave dielectric properties of Ce2Zr3(MoO4)9 ceramics
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DOI：
10.1016/j.ceramint.2021.10.222
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发表时间：
2021-10
影响因子：
5.2
通讯作者：
Ma Xiaomeng;Zhou Xu;Tian Huanrong;Li Lintao;Du Jialun;Wu Haitao;Lu Yizhong;Kimura Hideo;Yu Zhenxing
中科院分区：
文献类型：
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作者：
Ma Xiaomeng;Zhou Xu;Tian Huanrong;Li Lintao;Du Jialun;Wu Haitao;Lu Yizhong;Kimura Hideo;Yu Zhenxing
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 thatεrwas closely related to the polarizability, andQ∙fwas affected by the lattice energy of the Mo–O bond. Theτfwas 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 whenx= 0.04.
