DC Field | Value | Language |
---|---|---|
dc.contributor.author | Jeon, Sang-Chae | ko |
dc.contributor.author | Kang, Suk-Joong L. | ko |
dc.date.accessioned | 2016-04-20T06:48:56Z | - |
dc.date.available | 2016-04-20T06:48:56Z | - |
dc.date.created | 2016-01-04 | - |
dc.date.created | 2016-01-04 | - |
dc.date.issued | 2015-12 | - |
dc.identifier.citation | JOURNAL OF ELECTROCERAMICS, v.35, no.1-4, pp.129 - 134 | - |
dc.identifier.issn | 1385-3449 | - |
dc.identifier.uri | http://hdl.handle.net/10203/205500 | - |
dc.description.abstract | The effect of oxidation on dielectric-temperature behavior of core/shell grained BaTiO3 was studied in an attempt to reveal the prime governing parameter of dielectric-temperature behavior. BaTiO3 samples doped with 3 mol% Y2O3 or 3 mol% Dy2O3 with the same effective charges were sintered in a reducing atmosphere (Po-2 < 10(-13)) and oxidized at 1050-1250 A degrees C for 10 h in air. In the Y-doped samples, as the oxidation temperature increased, the fraction of the grains with ferroelectric domains in the shell increased from 18 to 54 % and the residual strain decreased. With an increased domain fraction, the dielectric-temperature behavior became poor, and a dielectric peak appeared. On the other hand, all the Dy-doped and air-annealed samples exhibited relatively high fractions of grains with ferroelectric domains in the shell, 32 % at 1050 A degrees C and 63 % at 1250 A degrees C, indicating a considerable reduction of residual strain in all the samples. The temperature stability of the Dy-doped samples was poor, and there was a dielectric peak, irrespective of the oxidation temperature. This difference in dielectric response between the Y-doped and Dy-doped samples reveals that the prime factor governing the dielectric-temperature stability is the residual strain in the core/shell grains rather than the previously suggested factors of defect concentration, dopant concentration in the shell and the occupational sites of rare-earth dopants. | - |
dc.language | English | - |
dc.publisher | SPRINGER | - |
dc.subject | MULTILAYER CERAMIC CAPACITORS | - |
dc.subject | MN SUBSTITUTED BATIO3 | - |
dc.subject | CORE-SHELL STRUCTURE | - |
dc.subject | BARIUM-TITANATE | - |
dc.subject | OXYGEN NONSTOICHIOMETRY | - |
dc.subject | INSULATION RESISTANCE | - |
dc.subject | OCCUPATIONAL SITES | - |
dc.subject | CURIE-TEMPERATURE | - |
dc.subject | DOMAIN FORMATION | - |
dc.subject | RARE-EARTH | - |
dc.title | Oxidation-induced strain relaxation and related dielectric-temperature behavior in core/shell grained BaTiO3 | - |
dc.type | Article | - |
dc.identifier.wosid | 000366155900017 | - |
dc.identifier.scopusid | 2-s2.0-84949314551 | - |
dc.type.rims | ART | - |
dc.citation.volume | 35 | - |
dc.citation.issue | 1-4 | - |
dc.citation.beginningpage | 129 | - |
dc.citation.endingpage | 134 | - |
dc.citation.publicationname | JOURNAL OF ELECTROCERAMICS | - |
dc.identifier.doi | 10.1007/s10832-015-0004-z | - |
dc.contributor.localauthor | Kang, Suk-Joong L. | - |
dc.contributor.nonIdAuthor | Jeon, Sang-Chae | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Barium titanate | - |
dc.subject.keywordAuthor | Core/shell structure | - |
dc.subject.keywordAuthor | Dielectric properties | - |
dc.subject.keywordAuthor | Oxygen vacancy | - |
dc.subject.keywordAuthor | Strain relaxation | - |
dc.subject.keywordPlus | MULTILAYER CERAMIC CAPACITORS | - |
dc.subject.keywordPlus | MN SUBSTITUTED BATIO3 | - |
dc.subject.keywordPlus | CORE-SHELL STRUCTURE | - |
dc.subject.keywordPlus | BARIUM-TITANATE | - |
dc.subject.keywordPlus | OXYGEN NONSTOICHIOMETRY | - |
dc.subject.keywordPlus | INSULATION RESISTANCE | - |
dc.subject.keywordPlus | OCCUPATIONAL SITES | - |
dc.subject.keywordPlus | CURIE-TEMPERATURE | - |
dc.subject.keywordPlus | DOMAIN FORMATION | - |
dc.subject.keywordPlus | RARE-EARTH | - |
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