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Microwave dielectric properties and applications of Ba(Zn1/3Nb2/3)O3–Ca(Zn1/3Nb2/3)O3 composite ceramics by one-step synthesis method

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Abstract

(1 − x) Ca(Zn1/3Nb2/3) O3 − xBa(Zn1/3Nb2/3)O3 (short for CZN/BZN, x = 0–1.0) ceramics were prepared and investigated through the “one-step synthesis method” method. The structure of the system was analyzed using X-ray diffraction. The microstructure of the sintered pellet was analyzed using scanning electron microscopy. Dielectric constant (εr), temperature coefficient of resonant frequency (τf) and the unloaded quality factor (Q × f) were measured in the microwave frequency region. Two dielectric properties were firstly in the rising tendency and then decreasing with the increased x. On the other hand, a good combination of microwave dielectric properties (εr = 24, Q × f = 23,510 GHz τf = −9 ppm/°C) were obtained at x = 0.1. The compositions have excellent microwave dielectric properties and hence are suitable for ceramic capacitors or dielectric resonators applications.

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Acknowledgments

This work was supported by the second batch of strategic emerging industry project of Guangdong Provincial Department of science and technology (No.2012A090100001) and the Open Research Foundation of Key Laboratory (KFJJ201102).

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Authors and Affiliations

  1. School of Microelectronics and Solid-State Electronics, University of Electronic Science and Technology of China, Chengdu, 610054, China

    Xu Wang, Yuanxun Li, Jie Li, Guoliang Yu, Lin Zuo & Huaiwu Zhang

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  1. Xu Wang
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  2. Yuanxun Li
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Correspondence to Xu Wang.

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Wang, X., Li, Y., Li, J. et al. Microwave dielectric properties and applications of Ba(Zn1/3Nb2/3)O3–Ca(Zn1/3Nb2/3)O3 composite ceramics by one-step synthesis method. J Mater Sci: Mater Electron 25, 4720–4724 (2014). https://doi.org/10.1007/s10854-014-2222-6

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  • DOI: https://doi.org/10.1007/s10854-014-2222-6

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