Response of intergrown microstructure to an electric field and its consequences in the lead-free piezoelectric bismuth sodium titanate

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dc.contributor.authorLiu, Yen_AU
dc.contributor.authorNorén, Len_AU
dc.contributor.authorStuder, AJen_AU
dc.contributor.authorWithers, RLen_AU
dc.contributor.authorGuo, YPen_AU
dc.contributor.authorLi, YXen_AU
dc.contributor.authorYang, Hen_AU
dc.contributor.authorWang, Jen_AU
dc.date.accessioned2025-03-20T01:43:44Zen_AU
dc.date.available2025-03-20T01:43:44Zen_AU
dc.date.issued2012-03en_AU
dc.date.statistics2025-03-19en_AU
dc.description.abstractWe investigate the R3c average structure and micro-structure of the ceramic Bi 0.5Na 0.5TiO 3 (BNT) in situ under applied electric fields using diffraction techniques. Electron diffraction implies the presence of significant octahedral tilt twin disorder, corresponding to the existence of a fine scale intergrown microstructural (IGMS) 'phase' within the R3c rhombohedral average structure matrix. A careful neutron refinement suggests not only that the off-centre displacements of the cations relative to the oxygens in the R3c regions increases systematically on application of an electric field but also that the phase fraction of the IGMS regions increases systematically. The latter change in phase fraction on application of the electric field enhances the polar displacement of the cations relative to the oxygen anions and affects the overall strain response. These IGMS regions form local polar nano regions that are not correlated with one another, resulting in polarisation relaxation and strain behaviour observed in BNT-containing materials. © 2012 Elsevier Inc. All rights reserved.en_AU
dc.identifier.citationLiu, Y., Norén, L., Studer, A. J., Withers, R. L., Guo, Y., Li, Y., Yang, H., & Wang, J. (2012). Response of intergrown microstructure to an electric field and its consequences in the lead-free piezoelectric bismuth sodium titanate. Journal of Solid State Chemistry, 187, 309-315. doi:10.1016/j.jssc.2012.01.027en_AU
dc.identifier.issn0022-4596en_AU
dc.identifier.issn1095-726Xen_AU
dc.identifier.journaltitleJournal of Solid State Chemistryen_AU
dc.identifier.pagination309-315en_AU
dc.identifier.urihttps://doi.org/10.1016/j.jssc.2012.01.027en_AU
dc.identifier.urihttps://apo.ansto.gov.au/handle/10238/16071en_AU
dc.identifier.volume187en_AU
dc.languageEnglishen_AU
dc.language.isoenen_AU
dc.publisherElsevieren_AU
dc.subjectMicrostructureen_AU
dc.subjectElectric fieldsen_AU
dc.subjectLeaden_AU
dc.subjectBismuthen_AU
dc.subjectSodiumen_AU
dc.subjectTitanatesen_AU
dc.subjectPiezoelectricityen_AU
dc.subjectElectron diffractionen_AU
dc.subjectDiffractionen_AU
dc.titleResponse of intergrown microstructure to an electric field and its consequences in the lead-free piezoelectric bismuth sodium titanateen_AU
dc.typeJournal Articleen_AU
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