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Significantly enhanced pyroelectric performance in novel sodium niobate-based lead-free ceramics by compositional tuning
Zhou, Mingxing; Liang, Ruihong; Zhou, Zhiyong; Dong, Xianlin
2020-01-30
Source PublicationJOURNAL OF THE AMERICAN CERAMIC SOCIETY
ISSN0002-7820
Volume103Issue:1Pages:193
SubtypeArticle
AbstractIn this study, (1 - x)NaNbO3-xBa(0.6)(Bi0.5K0.5)(0.4)TiO3 (abbreviated as NN-xBBKT, x = 0.05, 0.10, 0.15, and 0.20) lead-free pyroelectric ceramics were synthesized by conventional solid-state reaction method. Moreover, their microstructure, phase structure, dielectric, ferroelectric, piezoelectric, and pyroelectric characteristics were studied systematically. The X-ray diffraction result showed that the phase structure of NN-xBBKT ceramics changed from orthorhombic to tetragonal and finally became pseudocubic symmetry. The ferroelectric-paraelectric phase transition temperature and depolarization temperature shifted to lower temperature with the increase in BBKT content. Furthermore, with increasing BBKT content, piezoelectric coefficient, figures of merit, and pyroelectric coefficient first increased and then decreased. The optimum pyroelectric properties (eg F-d = 0.81 x 10(-5) Pa-1/2, F-v = 1.02 x 10(-2) m(2) C-1, F-i = 1.04 x 10(-10) m V-1, and p = 3.11 x 10(-8) C cm(-2) K-1) were observed in sample composition with x = 0.15. More importantly, the pyroelectric coefficient of ceramic with x = 0.15 also displayed relatively high thermal stability because of high depolarization temperature (similar to 110 degrees C). These parameters demonstrate that the novel Pb-free NaNbO3-based ceramics form an important class of pyroelectric material with broad range of application prospect.
Keywordbulk ceramics compositional tuning lead-free pyroelectric properties sodium niobate-based
DOI10.1111/jace.16681
WOS KeywordPHASE-TRANSITION ; ELECTRICAL-PROPERTIES ; PIEZOELECTRIC PROPERTIES ; FERROELECTRIC PHASES ; NANBO3 CERAMICS ; THIN-FILM ; TEMPERATURE ; BEHAVIOR ; STRAIN ; SUBSTITUTION
Language英语
WOS Research AreaMaterials Science
PublisherWILEY
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/27550
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Zhou, Mingxing,Liang, Ruihong,Zhou, Zhiyong,et al. Significantly enhanced pyroelectric performance in novel sodium niobate-based lead-free ceramics by compositional tuning[J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY,2020,103(1):193.
APA Zhou, Mingxing,Liang, Ruihong,Zhou, Zhiyong,&Dong, Xianlin.(2020).Significantly enhanced pyroelectric performance in novel sodium niobate-based lead-free ceramics by compositional tuning.JOURNAL OF THE AMERICAN CERAMIC SOCIETY,103(1),193.
MLA Zhou, Mingxing,et al."Significantly enhanced pyroelectric performance in novel sodium niobate-based lead-free ceramics by compositional tuning".JOURNAL OF THE AMERICAN CERAMIC SOCIETY 103.1(2020):193.
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