Enhanced piezoelectricity in CaBi2Nb2O9 high-temperature piezoelectric ceramics: low-temperature sintering and weak texturing

被引：0

作者：

Wang, Z. P. ^{[1
,2
]}

Pan, C. B. ^{[3
,4
]}

Yin, L. H. ^{[1
]}

Song, W. H. ^{[1
]}

Zhu, X. B. ^{[1
]}

Yang, J. ^{[1
]}

Sun, Y. P. ^{[1
,5
,6
]}

机构：

[1] Chinese Acad Sci, Key Lab Mat Phys, Inst Solid State Phys, Hefei 230031, Peoples R China

[2] Univ Sci & Technol China, Hefei 230026, Peoples R China

[3] TianGong Univ, Key Lab Intelligent Control Elect Equipment, Tianjin 300387, Peoples R China

[4] Yongjiang Lab, Ningbo 315202, Peoples R China

[5] Chinese Acad Sci, High Magnet Field Lab, Hefei 230031, Peoples R China

[6] Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Peoples R China

来源：

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2025年 / 36卷 / 02期

关键词：

ELECTRICAL-PROPERTIES; STRUCTURAL DISTORTION; MICROSTRUCTURE; RESISTIVITY; PIEZOCERAMICS; CONDUCTIVITY; SUBSTITUTION; RELAXATION; IMPEDANCE; VACANCIES;

D O I：

10.1007/s10854-024-14206-8

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The effect of CeO2 sintering aid on the microstructural and electrical properties of CaBi2Nb2O9 ceramics was studied. The addition of CeO2 facilitates a reduction in the sintering temperature of CaBi2Nb2O9, improve the grain morphology, increase the relative density, and induce the c-axis oriented growth of some grains. The incorporation of some Ce ions into the B-sites of [NbO6] octahedra results in an increased tetragonal distortion, and therefore significantly affects the electrical properties of the ceramics. The sample with 0.6 wt% CeO2 exhibits an optimal performance with a large remanent polarization (Pr = 18.5 mu C/cm2) and a piezoelectric coefficient (d33 = 20.8 pC/N). The results indicate that adding CeO2 as a sintering aid is an effective strategy for enhancing the performance of CaBi2Nb2O9 ceramics.

引用

页数：16

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