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Large piezoelectricity and high Curie temperature in novel bismuth ferrite-based ferroelectric ceramics
Yu, Z; Zeng, JT; Zheng, LY; Liu, WB; Li, GR; Kassiba, A
2020-11-01
Source PublicationJOURNAL OF THE AMERICAN CERAMIC SOCIETY
ISSN0002-7820
Issue11Pages:6435
SubtypeArticle
AbstractThe requirement for ferroelectric ceramics with a high Curie temperature and a high piezoelectric coefficient remains an important research task for high-temperature sensors and actuators applications. (0.76-x)BiFe0-3.240.24PbTiO3-xBa(Sn0.2Ti0.8)O-3 (BF-PT-BST) piezoelectric ceramics were fabricated using the solid-state reaction method. XRD analysis indicated that the incorporation of large ionic radius Ba2+ at A-site and non ferroelectric-active Sa(4+) at B-site generated a decrease in the tetragonality degree c/a. A wide multiphase coexistence region was formed with the content of BST ranging from 0.13 to 0.28. The enhanced piezoelectric coefficient (d(33) similar to 200pC/N) was achieved while maintaining a high Curie temperature (T-C similar to 500 degrees C) and a high depolarization temperature (T-d similar to 450 degrees C) for the composition of 0.6BF-24PT-0.16BST. TEM patterns provided clear evidence for the presence of nanodomains (similar to 2nm) would be the predominant source for the enhanced piezoelectricity for the composition x = 0.20. The designed BF-PT-BST ternary system provides great potential for high-temperature piezoelectric applications.
DOI10.1111/jace.17382
WOS KeywordMORPHOTROPIC PHASE-BOUNDARY ; SOLID-SOLUTION SYSTEM ; DIELECTRIC-PROPERTIES ; BIFEO3 ; PIEZOCERAMICS ; PERFORMANCE ; ORIGIN
Language英语
WOS Research AreaMaterials Science
PublisherWILEY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/27843
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Yu, Z,Zeng, JT,Zheng, LY,et al. Large piezoelectricity and high Curie temperature in novel bismuth ferrite-based ferroelectric ceramics[J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY,2020(11):6435.
APA Yu, Z,Zeng, JT,Zheng, LY,Liu, WB,Li, GR,&Kassiba, A.(2020).Large piezoelectricity and high Curie temperature in novel bismuth ferrite-based ferroelectric ceramics.JOURNAL OF THE AMERICAN CERAMIC SOCIETY(11),6435.
MLA Yu, Z,et al."Large piezoelectricity and high Curie temperature in novel bismuth ferrite-based ferroelectric ceramics".JOURNAL OF THE AMERICAN CERAMIC SOCIETY .11(2020):6435.
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