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정후영

Jeong, Hu Young
UCRF Electron Microscopy group
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dc.citation.endPage 8245 -
dc.citation.number 11 -
dc.citation.startPage 8236 -
dc.citation.title CERAMICS INTERNATIONAL -
dc.citation.volume 43 -
dc.contributor.author Kwon, Oh Hyun -
dc.contributor.author Jang, Changheui -
dc.contributor.author Lee, Junho -
dc.contributor.author Jeong, Hu Young -
dc.contributor.author Kwon, Young-il -
dc.contributor.author Joo, Jong Hoon -
dc.contributor.author Kim, Hongjin -
dc.date.accessioned 2023-12-21T22:07:00Z -
dc.date.available 2023-12-21T22:07:00Z -
dc.date.created 2017-04-13 -
dc.date.issued 2017-08 -
dc.description.abstract High-density monoclinic ZrO2 was manufactured through sintering at ~1200°C by using nanosized powders. Then, the electrical conductivity was measured at a range of high temperatures (700-900°C) by electrical impedance spectroscopy (EIS). For the as-sintered monoclinic ZrO2, the measured electrical conductivity was 3.2×10-5 s/cm (for 80% TD) and 4.4×10-5 s/cm (for 89% TD) at 900°C. After aging at 900°C for 100h, the electrical conductivity of the monoclinic ZrO2 of 80%-TD decreased by more than 50%. However, after reheating at 1200°C for 1h, approximately 80% of the conductivity was recovered compared to the value of the as-sintered monoclinic ZrO2. The pure monoclinic crystal structure was retained despite the aging and reheating treatment. Based on microstructural observations of the aged and reheated monoclinic ZrO2, the changes in electrical conductivity after aging and reheating were explained by the formation and recovery of micro-cracks, respectively. -
dc.identifier.bibliographicCitation CERAMICS INTERNATIONAL, v.43, no.11, pp.8236 - 8245 -
dc.identifier.doi 10.1016/j.ceramint.2017.03.152 -
dc.identifier.issn 0272-8842 -
dc.identifier.scopusid 2-s2.0-85016195449 -
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/22155 -
dc.identifier.url http://www.sciencedirect.com/science/article/pii/S0272884217305370 -
dc.identifier.wosid 000401876000037 -
dc.language 영어 -
dc.publisher ELSEVIER SCI LTD -
dc.title Investigation of the electrical conductivity of sintered monoclinic zirconia (ZrO2) -
dc.type Article -
dc.description.isOpenAccess FALSE -
dc.relation.journalWebOfScienceCategory Materials Science, Ceramics -
dc.relation.journalResearchArea Materials Science -
dc.description.journalRegisteredClass scie -
dc.description.journalRegisteredClass scopus -
dc.subject.keywordAuthor Electrical conductivity -
dc.subject.keywordAuthor Impedance -
dc.subject.keywordAuthor Monoclinic ZrO2 -
dc.subject.keywordAuthor Undoped zirconia -
dc.subject.keywordPlus YTTRIA-STABILIZED ZIRCONIA -
dc.subject.keywordPlus IMPEDANCE SPECTROSCOPY -
dc.subject.keywordPlus TETRAGONAL ZIRCONIA -
dc.subject.keywordPlus DIELECTRIC-CONSTANT -
dc.subject.keywordPlus DEFECT STRUCTURE -
dc.subject.keywordPlus CUBIC ZIRCONIA -
dc.subject.keywordPlus PHASE -
dc.subject.keywordPlus FILMS -
dc.subject.keywordPlus DIFFUSION -
dc.subject.keywordPlus MICROSTRUCTURE -

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