Journal of Advanced Dielectrics, Volume. 13, Issue 6, 2350018(2023)

Investigation of lead-free BiFeO3–BaTiO3 piezoelectric ceramics through precise composition control

Hailan Qin1,2, Jianwei Zhao2、*, Xiaoxin Chen1,2, Hongtian Li1,2, Shenghao Wang2, Yuxiao Du2, Peifeng Li2, Huanfu Zhou1、**, and Dawei Wang3、***
Author Affiliations
  • 1Key Laboratory of Nonferrous Materials and New Processing Technology, Ministry of Education, College of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, P. R. China
  • 2Shenzhen Institute of Advanced Electronic Materials, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, P. R. China
  • 3Functional Materials and Acousto-Optic Instruments Institute, School of Instrumentation Science and Engineering, Harbin Institute of Technology, Harbin 150080, P. R. China
  • show less

    BiFeO3–BaTiO3 is a promising lead-free piezoelectric ceramic, exhibiting high Curie temperature and superior electrochemical characteristics. In this work, (1x)BiFeO3xBaTiO3 (BF–xBT, x=0.26, 0.28, 0.30, 0.32, 0.34, 0.36) ceramics were fabricated using the conventional solid-state reaction method through precise composition control. Multiple characterization techniques, including X-ray powder diffraction (XRD), scanning electron microscope (SEM), and electrical property testing systems, were applied to systematically examine the crystallographic structure, microstructure, as well as the dielectric, ferroelectric and piezoelectric properties of the BF–xBT ceramics. The XRD results confirm that all compositions exhibit a typical perovskite structure, transitioning from a single rhombohedral phase to a rhombohedral–cubic phase mixture as the BT content increases. SEM shows apparent core–shell microstructures in the ceramics. Notably, the results demonstrated that the BF–0.30BT ceramic exhibits the maximum piezoelectric constant (d33) 217pC/N, while the BF–0.34BT ceramic displays the maximum converse piezoelectric constant (d33)323pm/V, which highlights the suitability of BF–BT ceramics for high-performance piezoelectric applications.


    Get Citation

    Copy Citation Text

    Hailan Qin, Jianwei Zhao, Xiaoxin Chen, Hongtian Li, Shenghao Wang, Yuxiao Du, Peifeng Li, Huanfu Zhou, Dawei Wang. Investigation of lead-free BiFeO3–BaTiO3 piezoelectric ceramics through precise composition control[J]. Journal of Advanced Dielectrics, 2023, 13(6): 2350018

    Download Citation

    EndNote(RIS)BibTexPlain Text
    Save article for my favorites
    Paper Information

    Category: Research Articles

    Received: Jul. 25, 2023

    Accepted: Aug. 25, 2023

    Published Online: Jan. 22, 2024

    The Author Email: Zhao Jianwei (, Zhou Huanfu (, Wang Dawei (