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Semiconductor/relaxor 0–3 type composites without thermal depolarization in Bi0.5Na0.5TiO3-based lead-free piezoceramics

Author

Listed:
  • Ji Zhang

    (College of Engineering and Applied Science, Collaborative Innovation Center of Advanced Microstructures, Nanjing University)

  • Zhao Pan

    (University of Science and Technology Beijing)

  • Fei-Fei Guo

    (Condensed Matter Science and Technology Institute, Harbin Institute of Technology)

  • Wen-Chao Liu

    (College of Engineering and Applied Science, Collaborative Innovation Center of Advanced Microstructures, Nanjing University)

  • Huanpo Ning

    (School of Engineering and Materials Science, Queen Mary University of London)

  • Y. B. Chen

    (Nanjing University)

  • Ming-Hui Lu

    (College of Engineering and Applied Science, Collaborative Innovation Center of Advanced Microstructures, Nanjing University)

  • Bin Yang

    (Condensed Matter Science and Technology Institute, Harbin Institute of Technology)

  • Jun Chen

    (University of Science and Technology Beijing)

  • Shan-Tao Zhang

    (College of Engineering and Applied Science, Collaborative Innovation Center of Advanced Microstructures, Nanjing University)

  • Xianran Xing

    (University of Science and Technology Beijing)

  • Jürgen Rödel

    (Institute of Materials Science, Technische Universität Darmstadt)

  • Wenwu Cao

    (Condensed Matter Science and Technology Institute, Harbin Institute of Technology
    The Pennsylvania State University)

  • Yan-Feng Chen

    (College of Engineering and Applied Science, Collaborative Innovation Center of Advanced Microstructures, Nanjing University)

Abstract

Commercial lead-based piezoelectric materials raised worldwide environmental concerns in the past decade. Bi0.5Na0.5TiO3-based solid solution is among the most promising lead-free piezoelectric candidates; however, depolarization of these solid solutions is a longstanding obstacle for their practical applications. Here we use a strategy to defer the thermal depolarization, even render depolarization-free Bi0.5Na0.5TiO3-based 0–3-type composites. This is achieved by introducing semiconducting ZnO particles into the relaxor ferroelectric 0.94Bi0.5Na0.5TiO3–0.06BaTiO3 matrix. The depolarization temperature increases with increasing ZnO concentration until depolarization disappears at 30 mol% ZnO. The semiconducting nature of ZnO provides charges to partially compensate the ferroelectric depolarization field. These results not only pave the way for applications of Bi0.5Na0.5TiO3-based piezoceramics, but also have great impact on the understanding of the mechanism of depolarization so as to provide a new design to optimize the performance of lead-free piezoelectrics.

Suggested Citation

  • Ji Zhang & Zhao Pan & Fei-Fei Guo & Wen-Chao Liu & Huanpo Ning & Y. B. Chen & Ming-Hui Lu & Bin Yang & Jun Chen & Shan-Tao Zhang & Xianran Xing & Jürgen Rödel & Wenwu Cao & Yan-Feng Chen, 2015. "Semiconductor/relaxor 0–3 type composites without thermal depolarization in Bi0.5Na0.5TiO3-based lead-free piezoceramics," Nature Communications, Nature, vol. 6(1), pages 1-10, May.
    • Handle: RePEc:nat:natcom:v:6:y:2015:i:1:d:10.1038_ncomms7615
    DOI: 10.1038/ncomms7615
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    Cited by:

    1. Changhao Zhao & Andreja Benčan & Matthias Bohnen & Fangping Zhuo & Xiaolong Ma & Goran Dražić & Ralf Müller & Shengtao Li & Jurij Koruza & Jürgen Rödel, 2024. "Impact of stress-induced precipitate variant selection on anisotropic electrical properties of piezoceramics," Nature Communications, Nature, vol. 15(1), pages 1-10, December.

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