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Textured ferroelectric ceramics with high electromechanical coupling factors over a broad temperature range

Author

Listed:
  • Shuai Yang

    (Xi’an Jiaotong University)

  • Jinglei Li

    (Xi’an Jiaotong University)

  • Yao Liu

    (Xi’an Jiaotong University)

  • Mingwen Wang

    (Xi’an Jiaotong University)

  • Liao Qiao

    (Xi’an Jiaotong University)

  • Xiangyu Gao

    (Xi’an Jiaotong University)

  • Yunfei Chang

    (Harbin Institute of Technology)

  • Hongliang Du

    (Xi’an Jiaotong University)

  • Zhuo Xu

    (Xi’an Jiaotong University)

  • Shujun Zhang

    (AIIM, University of Wollongong)

  • Fei Li

    (Xi’an Jiaotong University)

Abstract

The figure-of-merits of ferroelectrics for transducer applications are their electromechanical coupling factor and the operable temperature range. Relaxor-PbTiO3 ferroelectric crystals show a much improved electromechanical coupling factor k33 (88~93%) compared to their ceramic counterparts (65~78%) by taking advantage of the strong anisotropy of crystals. However, only a few relaxor-PbTiO3 systems, for example Pb(In1/2Nb1/2)O3-Pb(Mg1/3Nb2/3)O3-PbTiO3, can be grown into single crystals, whose operable temperature range is limited by their rhombohedral-tetragonal phase transition temperatures (Trt: 60~120 °C). Here, we develop a templated grain-growth approach to fabricate -textured Pb(In1/2Nb1/2)O3-Pb(Sc1/2Nb1/2)O3-PbTiO3 (PIN-PSN-PT) ceramics that contain a large amount of the refractory component Sc2O3, which has the ability to increase the Trt of the system. The high k33 of 85~89% and the greatly increased Trt of 160~200 °C are simultaneously achieved in the textured PIN-PSN-PT ceramics. The above merits will make textured PIN-PSN-PT ceramics an alternative to single crystals, benefiting the development of numerous advanced piezoelectric devices.

Suggested Citation

  • Shuai Yang & Jinglei Li & Yao Liu & Mingwen Wang & Liao Qiao & Xiangyu Gao & Yunfei Chang & Hongliang Du & Zhuo Xu & Shujun Zhang & Fei Li, 2021. "Textured ferroelectric ceramics with high electromechanical coupling factors over a broad temperature range," Nature Communications, Nature, vol. 12(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-21673-8
    DOI: 10.1038/s41467-021-21673-8
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    Cited by:

    1. Qian, Suxin & Yao, Sijia & Wang, Yao & Yuan, Lifen & Yu, Jianlin, 2022. "Harvesting low-grade heat by coupling regenerative shape-memory actuator and piezoelectric generator," Applied Energy, Elsevier, vol. 322(C).
    2. Yongke Yan & Liwei D. Geng & Hairui Liu & Haoyang Leng & Xiaotian Li & Yu U. Wang & Shashank Priya, 2022. "Near-ideal electromechanical coupling in textured piezoelectric ceramics," Nature Communications, Nature, vol. 13(1), pages 1-9, December.

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