Evolving morphotropic phase boundary in lead-free (Bi1/2Na1/2)TiO3–BaTiO3 piezoceramics

dc.contributor.author Jo, Wook
dc.contributor.author Daniels, John
dc.contributor.author Tan, Xiaoli
dc.contributor.author Jones, Jacob
dc.contributor.author Tan, Xiaoli
dc.contributor.author Thomas, Pamela
dc.contributor.author Damjanovic, Dragan
dc.contributor.author Rödel, Jürgen
dc.contributor.department Materials Science and Engineering
dc.date 2018-02-13T17:42:42.000
dc.date.accessioned 2020-06-30T06:08:58Z
dc.date.available 2020-06-30T06:08:58Z
dc.date.copyright Sat Jan 01 00:00:00 UTC 2011
dc.date.embargo 2013-06-13
dc.date.issued 2011-01-07
dc.description.abstract <p>The correlation between structure and electrical properties of lead-free (1−x)(Bi1/2Na1/2)TiO3–xBaTiO3 (BNT-100xBT) polycrystalline piezoceramics was investigated systematically by <em>in situ</em> synchrotron diffraction technique, combined with electrical property characterization. It was found that the morphotropic phase boundary (MPB) between a rhombohedral and a tetragonal phase evolved into a morphotropic phase region with electric field. In the unpoled material, the MPB was positioned at the transition from space group R3m to P4mm (BNT-11BT) with optimized permittivity throughout a broad single-phase R3m composition regime. Upon poling, a range of compositions from BNT-6BT to BNT-11BT became two-phase mixture, and maximum piezoelectric coefficient was observed in BNT-7BT. It was shown that optimized electrical properties are related primarily to the capacity for domain texturing and not to phase coexistence.</p>
dc.description.comments <p>The following article appeared in <em>Journal of Applied Physics</em> 109 (2011): 014110 and may be found at <a href="http://dx.doi.org/10.1063/1.3530737" target="_blank">http://dx.doi.org/10.1063/1.3530737</a>.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/mse_pubs/7/
dc.identifier.articleid 1007
dc.identifier.contextkey 4834021
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath mse_pubs/7
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/55760
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/mse_pubs/7/2011_JoW_EvolvingMorphotropicPhase.pdf|||Sat Jan 15 01:32:08 UTC 2022
dc.source.uri 10.1063/1.3530737
dc.subject.disciplines Ceramic Materials
dc.subject.disciplines Materials Science and Engineering
dc.subject.keywords Piezoelectric fields
dc.subject.keywords Electrical properties
dc.subject.keywords Materials properties
dc.subject.keywords Thermodynamic properties
dc.subject.keywords X-ray diffraction
dc.subject.keywords Phase transitions
dc.subject.keywords Permittivity
dc.subject.keywords Dielectric properties
dc.subject.keywords Piezoelectric materials
dc.subject.keywords Sodium
dc.title Evolving morphotropic phase boundary in lead-free (Bi1/2Na1/2)TiO3–BaTiO3 piezoceramics
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication 62adb010-61c7-4fc2-a651-d8b152a926a9
relation.isOrgUnitOfPublication bf9f7e3e-25bd-44d3-b49c-ed98372dee5e
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