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

Shuai Yang; Jinglei Li; Yao Liu; Mingwen Wang; Liao Qiao; Xiangyu Gao; Yunfei Chang; Hongliang Du; Zhuo Xu; Shujun Zhang; Fei Li

doi:10.1038/s41467-021-21673-8

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

Shuai Yang, Jinglei Li^*, Yao Liu, Mingwen Wang, Liao Qiao, Xiangyu Gao, Yunfei Chang, Hongliang Du, Zhuo Xu, Shujun Zhang, Fei Li^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

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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(In_1/2Nb_1/2)O₃-Pb(Mg_1/3Nb_2/3)O₃-PbTiO₃, can be grown into single crystals, whose operable temperature range is limited by their rhombohedral-tetragonal phase transition temperatures (T_rt: 60~120 °C). Here, we develop a templated grain-growth approach to fabricate <001>-textured Pb(In_1/2Nb_1/2)O₃-Pb(Sc_1/2Nb_1/2)O₃-PbTiO₃ (PIN-PSN-PT) ceramics that contain a large amount of the refractory component Sc₂O₃, which has the ability to increase the T_rt of the system. The high k₃₃ of 85~89% and the greatly increased T_rt 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. © The Author(s) 2021.

Original language	English
Article number	1414
Journal	Nature Communications
Volume	12
Online published	3 Mar 2021
DOIs	https://doi.org/10.1038/s41467-021-21673-8
Publication status	Published - 2021
Externally published	Yes

Funding

F.L. and J.L. acknowledge the support of the National Natural Science Foundation of China (Grant Nos. 51922083, 51831010, and 51802182). Y.C. thanks the support of National Natural Science Foundation of China (11572103) and the Natural Science Foundation of Heilongjiang Province (YQ2019E026). The authors would like to thank Dr. Xiaoming Chen and Miss Xingxing Wang for the help on the measurements of temperature-dependent piezoelectric coefficients.

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This full text is made available under CC-BY 4.0. https://creativecommons.org/licenses/by/4.0/

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title = "Textured ferroelectric ceramics with high electromechanical coupling factors over a broad temperature range",

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 <001>-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. {\textcopyright} The Author(s) 2021.",

author = "Shuai Yang and Jinglei Li and Yao Liu and Mingwen Wang and Liao Qiao and Xiangyu Gao and Yunfei Chang and Hongliang Du and Zhuo Xu and Shujun Zhang and Fei Li",

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doi = "10.1038/s41467-021-21673-8",

language = "English",

volume = "12",

journal = "Nature Communications",

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T1 - Textured ferroelectric ceramics with high electromechanical coupling factors over a broad temperature range

AU - Yang, Shuai

AU - Li, Jinglei

AU - Liu, Yao

AU - Wang, Mingwen

AU - Qiao, Liao

AU - Gao, Xiangyu

AU - Chang, Yunfei

AU - Du, Hongliang

AU - Xu, Zhuo

AU - Zhang, Shujun

AU - Li, Fei

PY - 2021

Y1 - 2021

N2 - 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 <001>-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. © The Author(s) 2021.

AB - 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 <001>-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. © The Author(s) 2021.

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JO - Nature Communications

JF - Nature Communications

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ER -

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

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