Related Researcher

Author's Photo

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


Effect of poling temperature on piezoelectricity of CaZrO3-modified (K, Na)NbO3-based lead-free ceramics

DC Field Value Language Yao, Fang-Zhou ko Wang, Ke ko Jo, Wook ko Lee, Jae-Shin ko Li, Jing-Feng ko 2014-10-10T01:56:44Z - 2014-10-08 ko 2014-09 ko
dc.identifier.citation JOURNAL OF APPLIED PHYSICS, v.116, no.11, pp.114102 ko
dc.identifier.issn 0021-8979 ko
dc.identifier.uri -
dc.description.abstract Electrical poling is indispensable for endowing isotropic ferroelectric polycrystals with a net macroscopic polarization and hence piezoelectricity. However, little attention has been paid to the optimization of poling conditions in (K, Na)NbO3-based ceramics with a polymorphic phase transition. This study investigated the electrical properties of CaZrO3-modified (K, Na, Li)(Nb, Ta)O3lead-free piezoceramics as a function of the poling temperature. Peak piezoelectric coefficient d33of 352 ± 7 pC/N and planar electromechanical coupling factor kpof 0.47 were obtained at the optimized poling temperature of 120°C, which crosses the polymorphic phase transition regime. In-depth analysis of the asymmetric polarization hysteresis loops and bipolar strain curves uncovered striking analogy between electrical poling and unipolar cycling in the current system, which is attributed to a competition between domain reorientation and space charge accumulation. ko
dc.description.statementofresponsibility open -
dc.language 영어 ko
dc.publisher AMER INST PHYSICS ko
dc.title Effect of poling temperature on piezoelectricity of CaZrO3-modified (K, Na)NbO3-based lead-free ceramics ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-84907185171 ko
dc.identifier.wosid 000342837000038 ko
dc.type.rims ART ko
dc.description.wostc 1 *
dc.description.scopustc 0 * 2015-05-06 * 2014-10-08 *
dc.identifier.doi 10.1063/1.4895774 ko
dc.identifier.url ko
Appears in Collections:
MSE_Journal Papers

find_unist can give you direct access to the published full text of this article. (UNISTARs only)

Show simple item record


  • mendeley


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.