Abstract
To upgrade integrated piezoelectric properties of lead-free ceramics, (Ba0.85Ca0.15)(Ti0.9Zr0.08Sn0.02)O3-SrTiO3 ceramics were successfully fabricated by the tape casting method and microwave sintering (MWS) techniques. The experimental results show that rhombohedral-orthorhombic-tetragonal(R-O-T) multiphases coexist in the samples, and excellent piezoelectric performance of the ceramics (d33 = 398 pC/N, Pr = 3.90 µC/cm2, Ec = 3.43 kV/cm, tanδ = 4.8%, εr = 7791, and Tc = 82 °C, respectively) is obtained under 1300 °C for 1 h. The template of ST, prepared through molten-salt two-step method, can guide the grains to grow in the < 001 > direction.
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Acknowledgements
This work is financially supported by the National Natural Science Foundation of China (NSFC Nos. 51602066, 51862003) and High-level innovative talents plan of Guizhou province (No. (2015) 4009).
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Xue, A., Liu, Q., Yang, H. et al. Rhombohedral-orthorhombic-tetragonal multiphases coexist in (Ba0.85Ca0.15)(Ti0.9Zr0.08Sn0.02)O3-SrTiO3 piezoelectric ceramics prepared by microwave sintering techniques. J Mater Sci: Mater Electron 31, 19388–19395 (2020). https://doi.org/10.1007/s10854-020-04473-6
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DOI: https://doi.org/10.1007/s10854-020-04473-6