0.98[(Na(1–x)/2Smx/2Nb0.3TiO3)] + 0.02MnO2 Lead-free ceramic system sesign; an antiferroelectrics with improved relaxation behavior

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dc.contributor.authorEmmanuel, Marwa
dc.date.accessioned2024-08-17T11:34:49Z
dc.date.available2024-08-17T11:34:49Z
dc.date.issued2023
dc.descriptionAbstract. Full-text available at https://doi.org/10.1016/j.jallcom.2023.170740
dc.description.abstractThe sodium niobate-based ceramics 0.98[(Na(1−x)/2Smx/2Nb0.3TiO3)] + 0.02MnO2 acronymed NSmNT of different compositions (x = 0.05, 0.1, 0.11, 0.12, and 0.13) were prepared via solid-state reaction method. The prepared samples were characterized by XRD to study the phase structure of the designed systems, SEM to study the microstructure properties of the NSmNT ceramics. In addition to that LCR meter was used to measure the sample temperature-dependent dielectric permittivity, dielectric loss, and systems impedance. The results showed an increment in the dielectric breakdown strength (DBS) with increasing x content from 100 kVcm–1 to 450 kVcm–1. Similarly, the high recoverable energy density (Wrec) of 5.61 J cm–3 was obtained for x = 0.11 symbolized (NSmNT2) with an exquisite efficiency of 88%. The study also analyzed the complex impedance of the NSmNT2 ceramics system to clearly understand the dielectric behavior of the system in question. A general view of things considers the NSmNT2 ceramic system to be a reliable system for pulsed power applications.
dc.identifier.citationEmmanuel, M. (2023). 0.98 [(Na (1–x)/2Smx/2Nb0. 3TiO3)]+ 0.02 MnO2 Lead-free ceramic system design; an antiferroelectrics with improved relaxation behavior. Journal of Alloys and Compounds, 960, 170740.
dc.identifier.doi10.1016/j.jallcom.2023.170740
dc.identifier.otherDOI: 10.1016/j.jallcom.2023.170740 Get rights and content
dc.identifier.urihttps://repository.udom.ac.tz/handle/20.500.12661/4695
dc.language.isoen
dc.publisherElsevier BV
dc.relation.ispartofJournal of Alloys and Compounds
dc.subjectSodium niobate-based ceramics
dc.subjectNSmNT ceramics
dc.subjectSolid-state reaction method
dc.subjectXRD analysis
dc.subjectSEM microstructure
dc.subjectDielectric permittivity
dc.subjectDielectric loss
dc.subjectSystem impedance
dc.subjectDielectric breakdown strength
dc.subjectRecoverable energy density
dc.subjectEfficiency
dc.subjectComplex impedance analysis
dc.subjectPulsed power applications.
dc.title0.98[(Na(1–x)/2Smx/2Nb0.3TiO3)] + 0.02MnO2 Lead-free ceramic system sesign; an antiferroelectrics with improved relaxation behavior
dc.typeArticle
oaire.citation.volume960
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