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Effect of copper vanadate sintering aid on the microstructure and dielectric properties of (Zn, Mg)TiO3 ceramics

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Abstract

Copper vanadate compounds (abbreviated to CVO) were synthesized to accelerate the sinterability of (Zn0.7Mg0.3)TiO3 ceramics (abbreviated to ZMT). CVO-doped ZMT ceramics were prepared by a conventional mixed-oxide method. The phase structure, morphology and dielectric properties of ceramics were investigated. The results show that ZMT ceramics with 0.2 wt% CVO addition can be well sintered to approach 98 % theoretical density at 950 °C. At the same time, CVO addition inhibits the exaggerated grain growth and improves morphology of ceramics samples effectively. 0.2 wt% CVO doped ZMT ceramics sintered at 950 °C exhibits good microwave dielectric properties of ε r  = 22 and Q × f = 11,700 GHz. Due to their good dielectric properties, low firing characteristics, 0.2 wt% CVO doped ZMT ceramics can serve as the promising high-frequency dielectric capacitor requiring low sintering temperature.

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Acknowledgments

The work was supported by National Natural Science Foundation of China (Project 51372197) and the Scientific Research Program Funded by Shaanxi Provincial Education Department (Project 14JK1483).

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  1. Department of Materials Science and Engineering, Xi’an University of Science and Technology, Xi’an, 710054, People’s Republic of China

    Xiangchun Liu & Chenguang Zuo

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  1. Xiangchun Liu
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  2. Chenguang Zuo
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Correspondence to Xiangchun Liu.

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Liu, X., Zuo, C. Effect of copper vanadate sintering aid on the microstructure and dielectric properties of (Zn, Mg)TiO3 ceramics. J Mater Sci: Mater Electron 27, 5462–5467 (2016). https://doi.org/10.1007/s10854-016-4450-4

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  • DOI: https://doi.org/10.1007/s10854-016-4450-4

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