Temperature independence of piezoelectric properties for high-performance BiFeO3–BaTiO3 lead-free piezoelectric ceramics up to 300 °C

Li-Feng Zhu; Qing Liu; Bo-Ping Zhang; Zhen-Yong Cen; Ke Wang; Jun-jie Li; Yang Bai; Xiao-Hui Wang; Jing-Feng Li

doi:10.1039/C8RA07553K

Temperature independence of piezoelectric properties for high-performance BiFeO₃–BaTiO₃ lead-free piezoelectric ceramics up to 300 °C†

Li-Feng Zhu,

‡^a Qing Liu,‡^b Bo-Ping Zhang,

*^a Zhen-Yong Cen,^b Ke Wang,

*^b Jun-jie Li,^c Yang Bai,^c Xiao-Hui Wang^b and Jing-Feng Li

Author affiliations

* Corresponding authors

^a School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
E-mail: bpzhang@ustb.edu.cn

^b State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
E-mail: wang-ke@tsinghua.edu.cn

^c Key Laboratory of Environmental Fracture (Ministry of Education), University of Science and Technology Beijing, Beijing 100083, China

Abstract

The temperature-dependence behaviors of ferroelectric, piezoelectric, k_p and electrical-field-induced strain were carefully evaluated for high-performance BiFeO₃–0.3BaTiO₃ (BF–0.3BT) ceramics. There results indicate, combined with Rayleigh analysis and temperature-dependence XRD and PFM, that the increase of strain and large signal Image ID:c8ra07553k-t1.gif with increasing the temperature from room temperature to 180 °C is related to the joint effect of intrinsic contribution (lattice expansion) and extrinsic contribution (domain switching). With further increasing the temperature to 300 °C, the large signal d₃₃ and electrical-field-induced strain mildly decrease because of the increase of conductivity for BF–0.3BT ceramics. However, different from strain and large signal Image ID:c8ra07553k-t2.gif the small signal d₃₃(E₀) and k_p exhibit excellent temperature stability behavior as the temperature increases from room temperature to 300 °C.

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Article information

DOI: https://doi.org/10.1039/C8RA07553K
Article type: Paper
Submitted: 11 Sep 2018
Accepted: 15 Oct 2018
First published: 19 Oct 2018
This article is Open Access

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RSC Adv., 2018,8, 35794-35801

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Temperature independence of piezoelectric properties for high-performance BiFeO₃–BaTiO₃ lead-free piezoelectric ceramics up to 300 °C

L. Zhu, Q. Liu, B. Zhang, Z. Cen, K. Wang, J. Li, Y. Bai, X. Wang and J. Li, RSC Adv., 2018, 8, 35794 DOI: 10.1039/C8RA07553K

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