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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

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Effect of interface structure on the microstructural evolution of ceramics

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dc.contributor.author Jo, Wook ko
dc.contributor.author Kim, Doh-Yeon ko
dc.contributor.author Hwang, Nong-Moon ko
dc.date.available 2014-12-24T00:17:26Z -
dc.date.created 2014-12-23 ko
dc.date.issued 2006-08 -
dc.identifier.citation JOURNAL OF THE AMERICAN CERAMIC SOCIETY, v.89, no.8, pp.2369 - 2380 ko
dc.identifier.issn 0002-7820 ko
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/9611 -
dc.identifier.uri http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=33745943782 ko
dc.description.abstract The interface atomic structure was proposed to have a critical effect on microstructure evolution during sintering of ceramic materials. In liquid-phase sintering, spherical grains show normal grain growth behavior without exception, while angular grains often grow abnormally. The coarsening process of spherical grains with a disordered or rough interface atomic structure is diffusion-controlled, because there is little energy barrier for atomic attachments. On the other hand, kink-generating sources such as screw dislocations or two-dimensional (2-D) nuclei are required for angular grains having an ordered or singular interface structure. Coarsening of angular grains based on a 2-D nucleation mechanism could explain the abnormal grain growth behavior. It was also proposed that a densification process is closely related to the interface atomic structure. Enhanced densification by carefully chosen additives during solid state sintering was explained in terms of the grain-boundary structural transition from an ordered to a disordered open structure. ko
dc.description.statementofresponsibility close -
dc.language ENG ko
dc.publisher WILEY-BLACKWELL ko
dc.subject ABNORMAL GRAIN-GROWTH ko
dc.subject SCANNING-TUNNELING-MICROSCOPY ko
dc.subject EQUILIBRIUM CRYSTAL SHAPES ko
dc.subject SUPPORTED METAL-CATALYSTS ko
dc.subject OXYGEN PARTIAL-PRESSURE ko
dc.subject UNSTABLE NECK FORMATION ko
dc.subject PERCENT PBTIO3 CERAMICS ko
dc.subject BARIUM-TITANATE GRAINS ko
dc.subject PHASE-SINTERED ALUMINA ko
dc.subject PLANE REENTRANT EDGE ko
dc.title Effect of interface structure on the microstructural evolution of ceramics ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-33745943782 ko
dc.identifier.wosid 000239005900001 ko
dc.type.rims ART ko
dc.description.wostc 51 *
dc.description.scopustc 52 *
dc.date.tcdate 2015-05-06 *
dc.date.scptcdate 2014-12-23 *
dc.identifier.doi 10.1111/j.1551-2916.2006.01160.x ko
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