Structural, microstructural and thermal properties of lead-free bismuth-sodium-barium-titanate piezoceramics synthesized by mechanical alloying

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dc.citation.epage486en_US
dc.citation.issueNumber2en_US
dc.citation.spage482en_US
dc.citation.volumeNumber48en_US
dc.contributor.authorAmini, R.en_US
dc.contributor.authorGhazanfari, M.R.en_US
dc.contributor.authorAlizadeh, M.en_US
dc.contributor.authorArdakani H.A.en_US
dc.contributor.authorGhaffari, M.en_US
dc.date.accessioned2016-02-08T09:40:59Z
dc.date.available2016-02-08T09:40:59Z
dc.date.issued2013en_US
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)en_US
dc.description.abstractBismuth-sodium-barium-titanate piezoceramics with a composition of (Bi 0.5Na0.5)0.94Ba0.06TiO3 (BNBT) were prepared by mechanical alloying (MA). Structural analysis and phase identification were performed by X-ray diffraction (XRD). Microstructural studies and chemical composition homogeneity were performed by scanning electron microscope (SEM) coupled with energy dispersive X-ray analysis (EDX). Furthermore, thermal properties of the as-milled powders were evaluated by thermogravimetry/differential thermal analysis (TG/DTA). During the initial milling, the constituents were transformed to the perovskite, pyrochlore, and BNT phases; in addition, partial amorphization of the structure appeared during the milling cycle. As MA progressed, transformation of pyrochlore-to-perovskite and crystallization of the amorphous phase occurred and also, the BNBT phase was significantly developed. It was found that the MA process has the ability to synthesize the BNBT powders with a submicron particle size, regular morphology, and uniform elemental distribution. © 2012 Elsevier Ltd.en_US
dc.identifier.doi10.1016/j.materresbull.2012.11.008en_US
dc.identifier.issn0025-5408
dc.identifier.urihttp://hdl.handle.net/11693/21088
dc.language.isoEnglishen_US
dc.relation.isversionofhttp://dx.doi.org/10.1016/j.materresbull.2012.11.008en_US
dc.source.titleMaterials Research Bulletinen_US
dc.subjectA. Ceramicsen_US
dc.subjectA. Electronic materialsen_US
dc.subjectA. Nanostructuresen_US
dc.subjectD. Microstructureen_US
dc.subjectD. Phase equilibriaen_US
dc.subjectA. Ceramicsen_US
dc.subjectAmorphous phaseen_US
dc.subjectAs-milled powdersen_US
dc.subjectChemical compositionsen_US
dc.subjectElectronic materialsen_US
dc.subjectElemental distributionen_US
dc.subjectEnergy dispersive x-rayen_US
dc.subjectLead-Freeen_US
dc.subjectMicro-structuralen_US
dc.subjectMilling cyclesen_US
dc.subjectPartial amorphizationen_US
dc.subjectPhase identificationen_US
dc.subjectPiezo-ceramicsen_US
dc.subjectPyrochloresen_US
dc.subjectSub-micron particlesen_US
dc.subjectTiOen_US
dc.subjectBariumen_US
dc.subjectBismuthen_US
dc.subjectMechanical alloyingen_US
dc.subjectMilling (machining)en_US
dc.subjectPerovskiteen_US
dc.subjectPhase equilibriaen_US
dc.subjectPiezoelectric ceramicsen_US
dc.subjectPowdersen_US
dc.subjectScanning electron microscopyen_US
dc.subjectThermoanalysisen_US
dc.subjectThermodynamic propertiesen_US
dc.subjectX ray diffractionen_US
dc.subjectSodiumen_US
dc.titleStructural, microstructural and thermal properties of lead-free bismuth-sodium-barium-titanate piezoceramics synthesized by mechanical alloyingen_US
dc.typeArticleen_US

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Department of Electrical and Electronics Engineering
Institute of Materials Science and Nanotechnology (UNAM)