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Effects of sintering temperature on structure and properties of 0.998[0.95(K0.5Na0.5)NbO3–0.05LiSbO3]–0.002BiFe0.8Co0.2O3 piezoelectric ceramics

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Abstract

0.998[0.95(K0.5Na0.5)NbO3–0.05LiSbO3]–0.002BiFe0.8Co0.2O3 (KNN–LS–BFC) piezoelectric ceramics were prepared by the traditional sintering method. The effects of sintering temperature on the structure and properties of KNN–LS–BFC ceramics were studied. The results reveal that the sintering temperature has significant influence on crystallizability and piezoelectric properties of KNN–LS–BFC ceramics, but not on the ferroelectric properties. The KNN–LS–BFC ceramics sintered at different temperature are perovskite structure with the tetragonal phase and the crystal lattice constant of specimens varied with the sintering temperature. With the sintering temperature increases from 1010 to 1060 °C, the grains become more homogeneous and more tight-arrangement. The maximum values of d 33 = 282 pC/N, k p  = 49.41 % and Q m  = 32.52 all can be obtained when the sintering temperature is 1020 °C, but the minimum value of tanδ = 1.95 % can be obtained when the sintering temperature is 1030 °C, meanwhile the ε r , P r and E c maintain 1266.76–1395.82, 19.85–22.49 μC/cm2 and 1.46–1.56 kV/mm, respectively.

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Acknowledgments

This research was sponsored by Guangxi Nature Science Foundations, China (No. 2010GXNSFD013007).

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Authors and Affiliations

  1. School of Materials Science and Engineering, Guilin University of Electronic Technology, Guilin, 541004, China

    Hua Wang, Xiayan Zhao, Jiwen Xu, Xia Zhai & Ling Yang

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  1. Hua Wang
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  2. Xiayan Zhao
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  3. Jiwen Xu
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  4. Xia Zhai
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  5. Ling Yang
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Correspondence to Hua Wang.

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Wang, H., Zhao, X., Xu, J. et al. Effects of sintering temperature on structure and properties of 0.998[0.95(K0.5Na0.5)NbO3–0.05LiSbO3]–0.002BiFe0.8Co0.2O3 piezoelectric ceramics. J Mater Sci: Mater Electron 26, 6129–6133 (2015). https://doi.org/10.1007/s10854-015-3192-z

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  • DOI: https://doi.org/10.1007/s10854-015-3192-z

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