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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


Bi-templated grain growth maximizing the effects of texture on piezoelectricity

DC Field Value Language Kang, Woo-Seok ko Lee, Tae-Gon ko Kang, Joo-Hee ko Lee, Ju-Hyeon ko Choi, Gangho ko Kim, Sun-Woo ko Nahm, Sahn ko Jo, Wook ko 2021-10-01T01:43:11Z - 2021-09-24 ko 2021-04 ko
dc.identifier.citation JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, v.41, no.4, pp.2482 - 2487 ko
dc.identifier.issn 0955-2219 ko
dc.identifier.uri -
dc.description.abstract Templated grain growth is beneficial for piezoelectric materials, the properties of which become the best in their single crystalline form. Nevertheless, a textured ceramic prepared by a templated grain growth technique often fails in exhibiting as good properties as expected in single crystals even with a high degree of orientation factor. Here, we propose a new strategy for maximizing texturing effect by suppressing the growth of untextured matrix grains. The textured ceramics made by our method, so-called bi-templated grain growth, are featured by ultrahigh piezoelectric properties (d33 = ∼1,031 pC/N, d⋅g = ∼59,000, kp = ∼0.76). A special emphasis is on the achieved electric-field-induced strain of 0.13 % at 1 kV/mm, which is as high as that of single crystals. This work demonstrates that not only the degree of texture but also the coarsening of untextured matrix grains should be well-controlled to best exploit the templated grain growth technique. ko
dc.language 영어 ko
dc.publisher Elsevier BV ko
dc.title Bi-templated grain growth maximizing the effects of texture on piezoelectricity ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-85098109106 ko
dc.identifier.wosid 000613646700008 ko
dc.type.rims ART ko
dc.identifier.doi 10.1016/j.jeurceramsoc.2020.12.028 ko
dc.identifier.url ko
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