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Lead-free piezoceramics

Author

Listed:
  • Yasuyoshi Saito

    (Toyota Central R&D Laboratories, Inc.)

  • Hisaaki Takao

    (Toyota Central R&D Laboratories, Inc.)

  • Toshihiko Tani

    (Toyota Central R&D Laboratories, Inc.)

  • Tatsuhiko Nonoyama

    (DENSO Corporation)

  • Kazumasa Takatori

    (Toyota Central R&D Laboratories, Inc.)

  • Takahiko Homma

    (Toyota Central R&D Laboratories, Inc.)

  • Toshiatsu Nagaya

    (DENSO Corporation)

  • Masaya Nakamura

    (DENSO Corporation)

Abstract

Lead has recently been expelled from many commercial applications and materials (for example, from solder, glass and pottery glaze) owing to concerns regarding its toxicity. Lead zirconium titanate (PZT) ceramics are high-performance piezoelectric materials, which are widely used in sensors, actuators and other electronic devices; they contain more than 60 weight per cent lead. Although there has been a concerted effort to develop lead-free piezoelectric ceramics, no effective alternative to PZT has yet been found1,2,3,4,5,6,7,8,9,10,11,12,13,14. Here we report a lead-free piezoelectric ceramic with an electric-field-induced strain comparable to typical actuator-grade PZT. We achieved this through the combination of the discovery of a morphotropic phase boundary in an alkaline niobate-based perovskite solid solution, and the development of a processing route leading to highly 〈001〉 textured polycrystals. The ceramic exhibits a piezoelectric constant d33 (the induced charge per unit force applied in the same direction) of above 300 picocoulombs per newton (pC N-1), and texturing the material leads to a peak d33 of 416 pC N-1. The textured material also exhibits temperature-independent field-induced strain characteristics.

Suggested Citation

  • Yasuyoshi Saito & Hisaaki Takao & Toshihiko Tani & Tatsuhiko Nonoyama & Kazumasa Takatori & Takahiko Homma & Toshiatsu Nagaya & Masaya Nakamura, 2004. "Lead-free piezoceramics," Nature, Nature, vol. 432(7013), pages 84-87, November.
    • Handle: RePEc:nat:nature:v:432:y:2004:i:7013:d:10.1038_nature03028
    DOI: 10.1038/nature03028
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    Citations

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    Cited by:

    1. Jeder, Khawla & Bouhamed, Ayda & Nouri, Hanen & Abdelmoula, Najmeddine & Jöhrmann, Nathanael & Wunderle, Bernhard & Khemakhem, Hamadi & Kanoun, Olfa, 2022. "Enhancement of the performance of flexible lead-free nanogenerators by doping in BaTiO3 nanoparticles," Energy, Elsevier, vol. 261(PB).
    2. Mao-Hua Zhang & Chen Shen & Changhao Zhao & Mian Dai & Fang-Zhou Yao & Bo Wu & Jian Ma & Hu Nan & Dawei Wang & Qibin Yuan & Lucas Lemos Silva & Lovro Fulanović & Alexander Schökel & Peitao Liu & Hongb, 2022. "Deciphering the phase transition-induced ultrahigh piezoresponse in (K,Na)NbO3-based piezoceramics," Nature Communications, Nature, vol. 13(1), pages 1-10, December.
    3. 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.
    4. Jinfeng Lin & Jin Qian & Guanglong Ge & Yuxuan Yang & Jiangfan Li & Xiao Wu & Guohui Li & Simin Wang & Yingchun Liu & Jialiang Zhang & Jiwei Zhai & Xiaoming Shi & Haijun Wu, 2024. "Multiscale reconfiguration induced highly saturated poling in lead-free piezoceramics for giant energy conversion," Nature Communications, Nature, vol. 15(1), pages 1-11, December.
    5. Wei Feng & Bingcheng Luo & Shuaishuai Bian & Enke Tian & Zili Zhang & Ahmed Kursumovic & Judith L. MacManus-Driscoll & Xiaohui Wang & Longtu Li, 2022. "Heterostrain-enabled ultrahigh electrostrain in lead-free piezoelectric," Nature Communications, Nature, vol. 13(1), pages 1-11, December.
    6. Liang Chen & Shiqing Deng & Hui Liu & Jie Wu & He Qi & Jun Chen, 2022. "Giant energy-storage density with ultrahigh efficiency in lead-free relaxors via high-entropy design," Nature Communications, Nature, vol. 13(1), pages 1-8, December.
    7. Jiasheng Liang & Jin Liu & Pengfei Qiu & Chen Ming & Zhengyang Zhou & Zhiqiang Gao & Kunpeng Zhao & Lidong Chen & Xun Shi, 2023. "Modulation of the morphotropic phase boundary for high-performance ductile thermoelectric materials," Nature Communications, Nature, vol. 14(1), pages 1-8, December.

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