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Effects of Sn doping on the microstructure and dielectric and ferroelectric properties of Ba(Zr0.2Ti0.8)O3 ceramics

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Abstract

Ba(Zr0.2Ti0.8)1−x Sn x O3 ceramics are prepared via the conventional solid state reaction method. The effects of Sn doping on microstructure, dielectric and ferroelectric properties of Ba(Zr0.2Ti0.8)1−x Sn x O3 ceramics were investigated. These results indicate that Sn4+ ions enter the unit cell maintaining the perovskite structure of solid solution and substitute preferentially for Zr4+ and then Ti4+ when Sn content (x) gradually increases from 0 to 0.2. Introduction of Sn4+ on B sites makes grain more uniform and regular. The addition of Sn4+ results in the fall of the Curie temperature. The temperature dependences of dielectric properties of Ba(Zr0.2Ti0.8)1−x Sn x O3 ceramics indicate that the addition of stannum leads to the enhancement of the diffuseness of ferroelectric–paraelectric phase transition. Moreover, it can be found that the ferroelectric properties deteriorate as Sn content increases.

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Acknowledgements

This work was supported by the National Natural Science Foundation of China (Grant Nos. 51372283, 51402031, 61404018) and the Program for Innovation Teams in University of Chongqing, China (Grant No. CXTDX201601032).

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Authors and Affiliations

  1. Chongqing Yucai Middle School, Chongqing, 400050, China

    Xizhi Fu

  2. School of Metallurgy and Materials Engineering, Chongqing University of Science and Technology, University Town, Shapingba District, Chongqing, 401331, China

    Wei Cai, Gang Cheng & Rongli Gao

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  1. Xizhi Fu
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  2. Wei Cai
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  3. Gang Cheng
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  4. Rongli Gao
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Correspondence to Wei Cai.

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Fu, X., Cai, W., Cheng, G. et al. Effects of Sn doping on the microstructure and dielectric and ferroelectric properties of Ba(Zr0.2Ti0.8)O3 ceramics. J Mater Sci: Mater Electron 28, 8177–8185 (2017). https://doi.org/10.1007/s10854-017-6526-1

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  • DOI: https://doi.org/10.1007/s10854-017-6526-1

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