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Temperature‐Insensitive (K,Na)NbO3‐Based Lead‐Free Piezoactuator Ceramics
Abstract
The development of lead‐free piezoceramics has attracted great interest because of growing environmental concerns. A polymorphic phase transition (PPT) has been utilized in the past to tailor piezoelectric properties in lead‐free (K,Na)NbO 3 (KNN)‐based materials accepting the drawback of large temperature sensitivity. Here a material concept is reported, which yields an average piezoelectric coefficient d33 of about 300 pC/N and a high level of unipolar strain up to 0.16% at room temperature. Most intriguingly, field‐induced strain varies less than 10% from room temperature to 175 °C. The temperature insensitivity of field‐induced strain is rationalized using an electrostrictive coupling to polarization amplitude while the temperature‐dependent piezoelectric coefficient is discussed using localized piezoresponse probed by piezoforce microscopy. This discovery opens a new development window for temperature‐insensitive piezoelectric actuators despite the presence of a polymorphic phase transition around room temperature.
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Cited by
Recent development in lead-free perovskite piezoelectric bulk materials
Zheng, T., Wu, J., Xiao, D., & Zhu, J. (2018) · Progress in Materials Science · doi:10.1016/j.pmatsci.2018.06.002 · Cited by 1,078
Ultrahigh Piezoelectric Properties in Textured (K,Na)NbO3‐Based Lead‐Free Ceramics
Li, P., Zhai, J., Shen, B., Zhang, S., Li, X., Zhu, F., & Zhang, X. (2018) · Advanced Materials · doi:10.1002/adma.201705171 · Cited by 555
The structural origin of enhanced piezoelectric performance and stability in lead free ceramics
Zheng, T., Wu, H., Yuan, Y., Lv, X., Li, Q., Men, T., Zhao, C., Xiao, D., Wu, J., Wang, K., et al. (2017) · Energy & Environmental Science · doi:10.1039/c6ee03597c · Cited by 503
Self-citationRecent Progress on BaTiO3-Based Piezoelectric Ceramics for Actuator Applications
Gao, J., Xue, D., Liu, W., Zhou, C., & Ren, X. (2017) · Actuators · doi:10.3390/act6030024 · Cited by 310
Nano-domains in lead-free piezoceramics: a review
Lv, X., Zhang, X.-X., & Wu, J. (2020) · Journal of Materials Chemistry A · doi:10.1039/d0ta03201h · Cited by 283
Metadata
- Authors
- Wang, K., Yao, F., Jo, W., Gobeljic, D., Shvartsman, V. V., Lupascu, D. C., Li, J., & Rödel, J.
- Venue
- Advanced Functional Materials
- Publisher
- Wiley
- Published
- 2013-03-19
- Volume
- 23
- Issue
- 33
- Pages
- 4079-4086
- ISSN
- 1616-301X (ISSN-L)
- 1616-3028
- OpenAlex
- W2147593136
- Cited by
- 574
- References
- 0
- FWCI
- 16.87
- Type
- journal article
- Language
- en
- Open access
- closed
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- The paper
- Wang, K., Yao, F., Jo, W., Gobeljic, D., Shvartsman, V. V., Lupascu, D. C., Li, J., & Rödel, J. (2013). Temperature‐Insensitive (K,Na)NbO3‐Based Lead‐Free Piezoactuator Ceramics. Advanced Functional Materials. https://doi.org/10.1002/adfm.201203754
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