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Effects of pore sizes on the electrical properties for porous 0.36BS–0.64PT ceramics

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Abstract

Porous BiScO3–0.64PbTiO3 (0.36BS–0.64PT) ceramics were fabricated by using burnable plastic sphere technique. Self-synthesized polystyrene microsphere (PS, φ0.36 μm) and poly methyl methacrylate (PMMA, φ2, 10 and 18 μm) micro-balls were selected as PFA. The porosity, microstructure and electrical properties were investigated for porous 0.36BS–0.64PT ceramics fabricated with different particle sizes of pore forming agents (PFA). With increasing particle sizes of PFA, the pore size and porosity increased. Meanwhile relative permittivity (ε r), piezoelectric coefficient (d 33, −d 31) and electromechanical coupling coefficients (k p, k t) decreased. The mechanical quality factor (Q m), elastic coefficient (s 11), hydrostatic voltage coefficient (g h) and hydrostatic figure of merit increased accordingly. Finally, the effects of particle sizes of PFA on the microstructure and electrical properties were discussed.

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Acknowledgements

The SEM work was done at International Center for Dielectric Research (ICDR), Xi’an Jiaotong University, Xi’an, China. This work was financially supported by the 111 project (B14040), International Science & Technology Cooperation Program of China (Grant Nos. 2014DFR51240 and 2013DFR50470) and Science and technology research and development program of Shaanxi province (Grant No. 2014KW08-01).

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  1. Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education and International Center for Dielectric Research, Xian Jiaotong University, Xian, 710049, China

    Jinting Tan & Zhenrong Li

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  1. Jinting Tan
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Correspondence to Zhenrong Li.

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Tan, J., Li, Z. Effects of pore sizes on the electrical properties for porous 0.36BS–0.64PT ceramics. J Mater Sci: Mater Electron 28, 9309–9315 (2017). https://doi.org/10.1007/s10854-017-6668-1

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  • DOI: https://doi.org/10.1007/s10854-017-6668-1

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