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Journal of Advanced Ceramics 2012, 1(3): 227-231 https://doi.org/10.1007/s40145-012-0021-1
Research Article | Open Access | Issue | Published: 11 December 2012

Structure and electrical properties of ternary BiFeO3-BaTiO3-PbTiO3 high-temperature piezoceramics

Show Author's Information Zhonghua YAO*( ),  Ying LIU,  Zhe SONG,  Zhijian WANG,  Hua HAO,  Minghe CAO,  Zhiyong YU,  Hanxing LIU*( )
State Key Laboratory of Advanced Technology for Materials Synthesis and Processing and Key Laboratory of Advanced Technology for Specially Functional Materials, Ministry of Education, Wuhan University of Technology, Wuhan 430070, China
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Key words: ceramics, piezoelectric materials, barium titanate, perovskite, ferroelectrics
Cite this article:
YAO Z, LIU Y, SONG Z, et al. Structure and electrical properties of ternary BiFeO3-BaTiO3-PbTiO3 high-temperature piezoceramics. Journal of Advanced Ceramics, 2012, 1(3): 227-231. https://doi.org/10.1007/s40145-012-0021-1
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Abstract Full text About this article

In the current work, the bulk ternary (0.85-x) BiFeO3-xBaTiO3-0.15PbTiO3 (BF-BTx-PT, x=0.08-0.35) system has been studied as a potential high-temperature piezoceramics. Samples with various content of BT were prepared via solid-state route, and pure perovskite phase was confirmed by X-ray diffraction. The temperature dependence of dielectric constants confirmed the decrease of Curie temperature with increasing BT content. It was found that the morphotropic phase boundary (MPB) composition of BF-BTx-PT ceramics was in the vicinity of x=0.15, which exhibits optimal properties with piezoelectric constant d33 of 60 pC/N, high Curie temperature of 550 ℃, and low sintering temperature of 920 ℃. Measurements also showed that the depoling temperature was 300 ℃, about 150 ℃ higher than that of commercialized PZT ceramics, which indicated good temperature stability. BF-BTx-PT ceramics are promising candidates for high temperature applications.


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About this article

Structure and electrical properties of ternary BiFeO3-BaTiO3-PbTiO3 high-temperature piezoceramics

Show Author's information Zhonghua YAO*( ), Ying LIU, Zhe SONG, Zhijian WANG, Hua HAO, Minghe CAO, Zhiyong YU, Hanxing LIU*( )
State Key Laboratory of Advanced Technology for Materials Synthesis and Processing and Key Laboratory of Advanced Technology for Specially Functional Materials, Ministry of Education, Wuhan University of Technology, Wuhan 430070, China

Abstract

In the current work, the bulk ternary (0.85-x) BiFeO3-xBaTiO3-0.15PbTiO3 (BF-BTx-PT, x=0.08-0.35) system has been studied as a potential high-temperature piezoceramics. Samples with various content of BT were prepared via solid-state route, and pure perovskite phase was confirmed by X-ray diffraction. The temperature dependence of dielectric constants confirmed the decrease of Curie temperature with increasing BT content. It was found that the morphotropic phase boundary (MPB) composition of BF-BTx-PT ceramics was in the vicinity of x=0.15, which exhibits optimal properties with piezoelectric constant d33 of 60 pC/N, high Curie temperature of 550 ℃, and low sintering temperature of 920 ℃. Measurements also showed that the depoling temperature was 300 ℃, about 150 ℃ higher than that of commercialized PZT ceramics, which indicated good temperature stability. BF-BTx-PT ceramics are promising candidates for high temperature applications.

Keywords: Key words: ceramics, piezoelectric materials, barium titanate, perovskite, ferroelectrics

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Publication history

Received: 07 September 2012
Accepted: 04 October 2012
Published: 11 December 2012
Issue date: September 2012

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© The author(s) 2012

Acknowledgements

The authors would like to thank the support of the Key Programmer of Natural Science Foundation of China (No. 50932004), the International Technology Cooperation Project from the Ministry of Science and Technology of China (No. 2011DFA52680), the National Natural Science Foundation of China (No. 51102189), the Key Grant Project of Chinese Ministry of Education (No. 309022), the program for New Century Excellent Talents in University (No. NCET-11-0685), and the Fundamental Research Funds for the Central Universities (No. 2012-IV-006).

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