The roles of Sn4+ in affecting performance of Potassium Sodium Niobate ceramics
Xie L, Chen H, Xie Y, Tan Z, Cheng Y, Chen Q, Xing J, Zhu J (2022)
Publication Type: Journal article, Original article
Publication year: 2022
Journal
URI: https://www.sciencedirect.com/science/article/pii/S0925838821047009
DOI: 10.1016/j.jallcom.2021.163290
Abstract
In the KNN ceramics system, the contradictory relationship between piezoelectricity and phase transition temperature has received extensive attention from researchers. Herein, by studying the doping mechanism of Sn4+ in 0.957(K0.48Na0.52)NbO3-0.003BiCoO3-0.04(Bi0.5K0.5)Zr1-xSnxO3 (KNN-BC-BKZ1-xSx), the coexistent of excellent piezoelectricity and ideal Curie temperature is realized in KNN ceramics. The addition of Sn4+ keeps R-O-T coexistence system in KNN-BC-BKZ1-xSx ceramics, thereby maintaining the low energy barrier of domain rotation. Further investigation has shown that the substitution of Sn4+ can promote grain growth and increase the density of ceramics. In addition, the optimal comprehensive properties (d33 = 391 pC/N, kp = 0.518, TC = 332 °C, d33*" role="presentation" style="display: inline-block; line-height: normal; font-size: 14.4px; font-size-adjust: none; word-spacing: normal; overflow-wrap: normal; text-wrap-mode: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border-width: 0px; border-style: initial; position: relative;">𝑑33* = 512 pm/V) are simultaneously obtained at x = 0.15. Particularly, due to growth of grain size, excellent temperature stability is obtained within a broad temperature range. The discovery of Sn4+ doping is useful to the development of KNN-based materials with both piezoelectric electrical properties and Curie temperature as it provides a new idea for enhancing performances of ceramics.
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APA:
Xie, L., Chen, H., Xie, Y., Tan, Z., Cheng, Y., Chen, Q.,... Zhu, J. (2022). The roles of Sn4+ in affecting performance of Potassium Sodium Niobate ceramics. Journal of Alloys and Compounds. https://doi.org/10.1016/j.jallcom.2021.163290
MLA:
Xie, Lixu, et al. "The roles of Sn4+ in affecting performance of Potassium Sodium Niobate ceramics." Journal of Alloys and Compounds (2022).
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