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Jo, Wook
Sustainable Functional Ceramics Lab.
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dc.citation.endPage 5 -
dc.citation.number 24 -
dc.citation.startPage 1 -
dc.citation.title APPLIED PHYSICS LETTERS -
dc.citation.volume 104 -
dc.contributor.author Jo, Wook -
dc.contributor.author Yao, Fang-Zhou -
dc.contributor.author Patterson, Eric A -
dc.contributor.author Wang, Ke -
dc.contributor.author Roedel, Juergen -
dc.contributor.author Li, Jing-Feng -
dc.date.accessioned 2023-12-22T02:38:07Z -
dc.date.available 2023-12-22T02:38:07Z -
dc.date.created 2014-10-15 -
dc.date.issued 2014-06 -
dc.description.abstract The bipolar fatigue behavior of (K,Na) NbO3 (KNN)-based lead-free piezoceramics was investigated. A comparative analysis demonstrated that CaZrO3-modified KNN ceramics exhibited highly enhanced bipolar fatigue resistance due to the reduced lattice distortion (c/a ratio) and coexistence of orthorhombic and tetragonal phases. The hypothesis was verified by systematical studies of cycle-dependent large and small signal parameters and micro-morphologies. It was identified that mechanical stress induced microstructure damage beneath the electrodes renders the KNN ceramics to be vulnerable to bipolar cycling; while the mild fatigue behavior for CaZrO3-modified ones mainly originates from a thermally reversible domain wall pinning. -
dc.identifier.bibliographicCitation APPLIED PHYSICS LETTERS, v.104, no.24, pp.1 - 5 -
dc.identifier.doi 10.1063/1.4884826 -
dc.identifier.issn 0003-6951 -
dc.identifier.scopusid 2-s2.0-84903180622 -
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/10162 -
dc.identifier.wosid 000337915000076 -
dc.language 영어 -
dc.publisher AMER INST PHYSICS -
dc.title Enhanced bipolar fatigue resistance in CaZrO3-modified (K,Na) NbO3 lead-free piezoceramics -
dc.type Article -
dc.description.journalRegisteredClass scie -
dc.description.journalRegisteredClass scopus -

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