High piezoelectric coefficient and thermal stability of BKT-BFPT ceramics with <i>ex situ</i> high depoling temperature at 520 °C-Reference-Cited by-同舟云学术

High piezoelectric coefficient and thermal stability of BKT-BFPT ceramics with ex situ high depoling temperature at 520 °C

Published:2024-08-05 Issue:6 Volume:125 Page:
ISSN:0003-6951
Container-title:Applied Physics Letters
language:en
Short-container-title:

Author:

Zhou Yu¹²³,Wen Fei⁴⁵^ORCID,Mo Xiping¹³,Li Lili⁴⁶,Gao Xiaoyi⁷,Chen Jianguo⁸^ORCID

Affiliation:

1. College of Underwater Acoustic Engineering, Harbin Engineering University 1 , Harbin 150001, China

2. The Third Research Institute of China Electronics Technology Group Corporation 2 , Beijing 100015, China

3. Institute of Acoustics, Chinese Academy of Sciences 3 , Beijing 100190, China

4. Xi'an Institute of Advanced Technology, Hangzhou Dianzi University 4 , Hangzhou 310018, China

5. School of Mechanical Engineering, Hangzhou Dianzi University 5 , Hangzhou 310018, China

6. Engineering Research Center of Smart Microsensors and Microsystems, College of Electronics and Information, Hangzhou Dianzi University 6 , Hangzhou 310018, China

7. Shandong Industrial Ceramics Research and Design Institute Co, Ltd 7 ., Zibo 255000, People's Republic of China

8. School of Materials Science and Engineering, Shanghai University 8 , Shanghai 200444, China

Abstract

The in situ and ex situ temperature dependence of dielectric and piezoelectric properties of 0.1(Bi0.5K0.5)TiO3-0.6BiFeO3-0.3PbTiO3 (BKT-BFPT) ceramics were characterized, and related mechanisms were studied. The tetragonal distortion, Curie temperature Tc, depoling temperature Td, and piezoelectric coefficient d33 of BKT-BFPT are 0.06, 545 °C, 520 °C, and 205 pC/N, respectively. The in situ piezoelectric coefficient variation of BKT-BFPT ceramics from room temperature to 280 °C is only 10%, being 1/5 and 1/10 those of 0.36BiScO3-0.34PbTiO3 and Pb(Zr0.52Ti0.48)O3 ceramics. The better dielectric and piezoelectric thermal stabilities are owing to the temperature insensitive domain texture of BFPT-BKT ceramics due to their large lattice distortion. Resistivity results reflected that the higher depoling temperature derived from the ex situ measurement than that from the in situ test results from the high-temperature conductivity.

Funder

Zhejiang Province Public Welfare Technology Application Research Project

Publisher

AIP Publishing

Link

https://pubs.aip.org/aip/apl/article-pdf/doi/10.1063/5.0223310/20101806/062904_1_5.0223310.pdf

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