Please use this identifier to cite or link to this item: https://dspace.iiti.ac.in/handle/123456789/6905
Full metadata record
DC FieldValueLanguage
dc.contributor.authorSaurabh, Nishchayen_US
dc.contributor.authorPatel, Satyanarayanen_US
dc.date.accessioned2022-03-17T01:00:00Z-
dc.date.accessioned2022-03-21T10:51:41Z-
dc.date.available2022-03-17T01:00:00Z-
dc.date.available2022-03-21T10:51:41Z-
dc.date.issued2021-
dc.identifier.citationSaurabh, N., & Patel, S. (2021). Nonstoichiometric effect on electrocaloric, pyroelectric and energy storage properties of 0.94NaxBiyTiO3–0.06BaTiO3 bulk ceramics. Journal of Materials Science: Materials in Electronics, 32(22), 26871-26893. doi:10.1007/s10854-021-07063-2en_US
dc.identifier.issn0957-4522-
dc.identifier.otherEID(2-s2.0-85116069329)-
dc.identifier.urihttps://doi.org/10.1007/s10854-021-07063-2-
dc.identifier.urihttps://dspace.iiti.ac.in/handle/123456789/6905-
dc.description.abstractThe effect of nonstoichiometry on the pyroelectric, electrocaloric and energy storage properties in 0.94NaxBiyTiO3–0.06BaTiO3 (y = 0.49, 0.50, 0.51: x = 0.50 and y = 0.50: x = 0.51) bulk ceramics is investigated. The depolarization temperature and ferroelectric-relaxor phase transition vary with stoichiometry. The electrocaloric temperature (∆T) and entropy (∆S) change were calculated by Maxwell relation at different temperatures and electric fields. The 0.94Na0.50Bi0.49TiO3–0.06BaTiO3 showed maximum ∆T and ∆S as 1.2 K and 1.9 J/kgK, respectively at room temperature and 5.5 MV/m. However, Bi sufficient or excess compositions have the large value of ∆T (0.76 K) and ∆S (0.96 J/kgK) in the higher temperature range ~ 397–426 K. The pyroelectric coefficient obtained for stoichiometric composition is 9.4 × 10−4 C/m2K and 87 × 10−4 C/m2K at room temperature and Td, which increases to 10.1 × 10−4 C/m2K and 105 × 10−4 C/m2K, respectively for nonstoichiometric sample. The various pyroelectric figures of merit are calculated for all compositions and found that results are comparable with the previously reported lead-free ceramics. The recoverable energy storage and efficiency are enhanced by 35% (428 to 579 kJ/m3) and 21% (45% to 66%), respectively, when a nonstoichiometric composition is used. Thus, nonstoichiometry is an effective tool to tune pyroelectric, electrocaloric and other properties for the required application. © 2021, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.en_US
dc.language.isoenen_US
dc.publisherSpringeren_US
dc.sourceJournal of Materials Science: Materials in Electronicsen_US
dc.subjectBarium titanateen_US
dc.subjectEnergy storageen_US
dc.subjectPyroelectricityen_US
dc.subjectBulk ceramicsen_US
dc.subjectDepolarization temperatureen_US
dc.subjectElectrocaloricen_US
dc.subjectEnergy storage propertiesen_US
dc.subjectFerroelectric relaxorsen_US
dc.subjectHigh temperature rangeen_US
dc.subjectNon-stoichiometryen_US
dc.subjectNonstoichiometricen_US
dc.subjectPyroelectric coefficientsen_US
dc.subjectRelaxor phasisen_US
dc.subjectElectric fieldsen_US
dc.titleNonstoichiometric effect on electrocaloric, pyroelectric and energy storage properties of 0.94NaxBiyTiO3–0.06BaTiO3 bulk ceramicsen_US
dc.typeJournal Articleen_US
Appears in Collections:Department of Mechanical Engineering

Files in This Item:
There are no files associated with this item.


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Altmetric Badge: