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Ultrahigh thermal stability and piezoelectricity of lead-free KNN-based texture piezoceramics

Author

Listed:
  • Lihui Xu

    (Tongji University)

  • Jinfeng Lin

    (Tongji University)

  • Yuxuan Yang

    (Xi’an Jiaotong University)

  • Zhihao Zhao

    (Xi’an Jiaotong University)

  • Xiaoming Shi

    (University of Science and Technology Beijing)

  • Guanglong Ge

    (Tongji University)

  • Jin Qian

    (Tongji University)

  • Cheng Shi

    (Tongji University)

  • Guohui Li

    (Tongji University)

  • Simin Wang

    (Tongji University)

  • Yang Zhang

    (Xi’an Jiaotong University)

  • Peng Li

    (Liaocheng University)

  • Bo Shen

    (Tongji University)

  • Zhengqian Fu

    (State Key Lab High Performance Ceram & Superfine)

  • Haijun Wu

    (Xi’an Jiaotong University)

  • Houbing Huang

    (Beijing Institute of Technology)

  • Fei Li

    (Xi’an Jiaotong University)

  • Xiangdong Ding

    (Xi’an Jiaotong University)

  • Jun Sun

    (Xi’an Jiaotong University)

  • Jiwei Zhai

    (Tongji University)

Abstract

The contradiction between high piezoelectricity and uniquely poor temperature stability generated by polymorphic phase boundary is a huge obstacle to high-performance (K, Na)NbO3 -based ceramics entering the application market as Pb-based substitutes. We possess the phase boundary by mimicking Pb(Zr, Ti)O3’s morphotropic phase boundary structure via the synergistic optimization of diffusion phase boundary and crystal orientation in 0.94(Na0.56K0.44)NbO3−0.03Bi0.5Na0.5ZrO3−0.03(Bi0.5K0.5)HfO3 textured ceramics. As a result, a prominent comprehensive performance is obtained, including giant d33 of 550 ± 30 pC/N and ultrahigh temperature stability (d33 change rate less than 1.2% within 25-150 °C), representing a significant breakthrough in lead-free piezoceramics, even surpassing the Pb-based piezoelectric ceramics. Within the same temperature range, the d33 change rate of the commercial Pb(Zr, Ti)O3−5 ceramics is only about 10%, and more importantly, its d33 (~ 350 pC/N) is much lower than that of the (K, Na)NbO3-based ceramics in this work. This study demonstrates a strategy for constructing the phase boundary with MPB feature, settling the problem of temperature instability in (K, Na)NbO3-based ceramics.

Suggested Citation

  • Lihui Xu & Jinfeng Lin & Yuxuan Yang & Zhihao Zhao & Xiaoming Shi & Guanglong Ge & Jin Qian & Cheng Shi & Guohui Li & Simin Wang & Yang Zhang & Peng Li & Bo Shen & Zhengqian Fu & Haijun Wu & Houbing H, 2024. "Ultrahigh thermal stability and piezoelectricity of lead-free KNN-based texture piezoceramics," Nature Communications, Nature, vol. 15(1), pages 1-11, December.
    • Handle: RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-53437-5
    DOI: 10.1038/s41467-024-53437-5
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    References listed on IDEAS

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    1. Miro Kroutvar & Yann Ducommun & Dominik Heiss & Max Bichler & Dieter Schuh & Gerhard Abstreiter & Jonathan J. Finley, 2004. "Optically programmable electron spin memory using semiconductor quantum dots," Nature, Nature, vol. 432(7013), pages 81-84, November.
    2. Muhtar Ahart & Maddury Somayazulu & R. E. Cohen & P. Ganesh & Przemyslaw Dera & Ho-kwang Mao & Russell J. Hemley & Yang Ren & Peter Liermann & Zhigang Wu, 2008. "Origin of morphotropic phase boundaries in ferroelectrics," Nature, Nature, vol. 451(7178), pages 545-548, January.
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