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Jo, Wook
Sustainable Functional Ceramics Lab
Research Interests
  • Lead-free piezoceramics, ultra - low temperature sintering, ferroelectrics, relaxor ferroelectrics, 2D materials, magnetoelectric materials, multiferroics


Wide Compositional Range In Situ Electric Field Investigations on Lead-Free Ba(Zr0.2Ti0.8)O-3-x(Ba0.7Ca0.3)TiO3 Piezoceramic

DC Field Value Language Zakhozheva, M. ko Schmitt, L. A. ko Acosta, M. ko Guo, H. ko Jo, Wook ko Schierholz, R. ko Kleebe, H. -J. ko Tan, X. ko 2015-09-21T05:17:41Z - 2015-09-21 ko 2015-06 ko
dc.identifier.citation PHYSICAL REVIEW APPLIED, v.3, no.6, pp.064018 ko
dc.identifier.issn 2331-7019 ko
dc.identifier.uri -
dc.description.abstract The evolution of ferroelectric domains in the lead-free Ba(Zr0.2Ti0.8)O-3-x(Ba0.7Ca0.3)TiO3 (abbreviated as BZT-xBCT) piezoelectric ceramic is investigated in situ under an applied electric field using transmission electron microscopy (TEM). Poling-induced, reversible, transformation from a multidomain to a single-domain state is monitored for a large variety of compositions. For all studied materials, this transformation occurs with the appearance of an intermediate nanodomain state at moderate poling fields. According to our results, under high poling fields, a single-domain state vanishes and multiple domains reappear within the grains. Upon further cycling, switching between two different multidomain states occurs. For all BZT-xBCT compositions that we investigate, no sign of the electric-field-induced structural changes is detected using the selected area electron-diffraction (SAED) patterns, which are devoid of the reflection splitting or any detectable changes during electrical poling. The extrinsic contribution to the piezoelectric properties is found to dominate in the BZT-xBCT piezoceramic ko
dc.description.statementofresponsibility close -
dc.language 영어 ko
dc.publisher AMER PHYSICAL SOC ko
dc.title Wide Compositional Range In Situ Electric Field Investigations on Lead-Free Ba(Zr0.2Ti0.8)O-3-x(Ba0.7Ca0.3)TiO3 Piezoceramic ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-84949886581 ko
dc.identifier.wosid 000356834400001 ko
dc.type.rims ART ko
dc.description.wostc 1 * 2015-12-28 *
dc.identifier.doi 10.1103/PhysRevApplied.3.064018 ko
dc.identifier.url ko
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