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Effect of Ba0.91Ca0.09Ti0.916Sn0.084O3 on the microstructure and electrical properties of Bi0.5(Na0.925Li0.075)0.5TiO3 ceramics

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Abstract

(1−x)[Bi0.5(Na0.925Li0.075)0.5]TiO3–xBa0.91Ca0.09Ti0.916Sn0.084O3 [(1−x)BNLT–xBCTS] ceramics were prepared by the conventional sintering method in order to study the effects of BCTS content on their microstructure and electrical properties. X-ray diffraction patterns indicate that the BCTS diffuses into the BNLT lattice to form a solid solution. Their grain size decreases with increasing BCTS content. The macro–micro domain switching model of relaxor ferroelectrics was used to explain their abnormal temperature dependence of the dielectric loss. A better dielectric, ferroelectric, and piezoelectric behavior is demonstrated in the ceramic with x=0.06. (1−x)BNLT–xBCTS ceramics with x=0.06 have an optimum electrical behavior of d 33∼185 pC/N, k p∼33.1 %,ε r∼1335, tan δ∼0.026,P r∼26.7 μC/cm2, and E c∼16.2 kV/cm. As a result, the introduction of BCTS to BNLT is an effective way to enhance piezoelectric properties.

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Acknowledgement

Authors gratefully acknowledge the support of the Chengdu Medical College.

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Authors and Affiliations

  1. Teaching and Research Section of Physics, Chengdu Medical College, Chengdu, 610083, P.R. China

    Tao Chen, Ting Zhang, Guangchang Wang, Jifang Zhou, Jianwei Zhang & Yuhong Liu

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  1. Tao Chen
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Correspondence to Tao Chen.

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Chen, T., Zhang, T., Wang, G. et al. Effect of Ba0.91Ca0.09Ti0.916Sn0.084O3 on the microstructure and electrical properties of Bi0.5(Na0.925Li0.075)0.5TiO3 ceramics. Appl. Phys. A 111, 471–476 (2013). https://doi.org/10.1007/s00339-012-7530-1

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