Improvement of phase structure and energy storage properties of [(0.72-x)Bi0.5Na0.5TiO3-0.28SrTiO3-xBaZr0.05Ti0.95O3] lead-free ceramics

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dc.contributor.authorPanpho, Phakakorn
dc.contributor.authorThongmee, Navavan
dc.contributor.authorMathrmool, Krailas
dc.contributor.authorUnruan, Muangjai
dc.contributor.authorVitayakorn, Narathip
dc.contributor.authorSumang, Rattiphorn
dc.date.accessioned2026-08-06T10:34:24Z
dc.date.available2026-08-06T10:34:24Z
dc.date.issued2022-01-01
dc.description.abstractLead-free [(0.72-x)Bi<inf>0.5</inf>Na<inf>0.5</inf>TiO<inf>3</inf>-0.28SrTiO<inf>3</inf>-xBaZr<inf>0.05</inf>Ti<inf>0.95</inf>O<inf>3</inf>] ceramics (abbreviated as BNT-ST-xBZT), x = 0, 0.03, 0.05, 0.07, 0.10, and 0.15 wt.%, were prepared by conventional solid-state reaction method. The effect of x(BZT) content on phase structure, microstructure, dielectric, ferroelectric, and energy storage properties of BNT-BT-x(BST) ceramics was studied. The samples of the study were analyzed through X-ray diffraction (XRD). The XRD patterns were analyzed using Rietveld refinement. The XRD revealed a single-phase perovskite for all the samples with coexisting rhombohedral and tetragonal phases. It shows the increasing of x(BZT) content and, more tetragonal distortion of the phase. The scanning electron micrographs (SEM) of all the samples displayed spherical-like morphology. The grain growth inhibited by increasing of x(BZT) content. The average of grain size decreased from 2.74 µm to 0.65 µm with BZT content. The highest density (ρ = 5.31 ± 0.11 g/cm<sup>3</sup>), recoverable energy storage density (W <inf>rec</inf> = 0.234 J/cm<sup>3</sup>), and energy storage efficiency (η = 90%) at 30 kV/cm were found in the composition of x(BZT) = 0.05 wt.%.
dc.identifier.citationFerroelectrics, 601(1), 119-132, 2022
dc.identifier.doi10.1080/00150193.2022.2130766
dc.identifier.issn00150193
dc.identifier.other2-s2.0-85148435774
dc.identifier.urihttps://dspace.kmitl.ac.th/handle/123456789/12511
dc.sourceFerroelectrics
dc.subjectBNT-ST-BZT
dc.subjectdielectric properties
dc.subjectenergy storage properties
dc.subjectferroelectric properties
dc.subjectPhase structure
dc.titleImprovement of phase structure and energy storage properties of [(0.72-x)Bi0.5Na0.5TiO3-0.28SrTiO3-xBaZr0.05Ti0.95O3] lead-free ceramics
dc.typeArticle

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