A Novel One-Step Flame Synthesis Method for Tungsten-Doped CCTO
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Singh, Laxman | - |
dc.contributor.author | Sin, Byung Cheol | - |
dc.contributor.author | Kim, Ill Won | - |
dc.contributor.author | Mandal, K. D. | - |
dc.contributor.author | Chung, Hoeil | - |
dc.contributor.author | Lee, Youngil | - |
dc.date.accessioned | 2022-07-15T19:18:55Z | - |
dc.date.available | 2022-07-15T19:18:55Z | - |
dc.date.created | 2021-05-12 | - |
dc.date.issued | 2016-01 | - |
dc.identifier.issn | 0002-7820 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/155323 | - |
dc.description.abstract | An efficient synthesis is used for the first time to prepare CaCu3Ti4-xWxO12 (x=0.01, 0.03, and 0.05) electroceramics for energy storage capacitors. CaCu3Ti4-xWxO12 ceramics are synthesized via flame synthesis of metal nitrates precursors in nonaqueous solution using cheap, stable, and insoluble solid TiO2 powder. The pathway yielded a CaCu3Ti4O12 (CCTO) phase with the traces of CuO and CaTiO3 sintered at 1050 degrees C for 30h. The SEM micrograph shows the grains with smooth surfaces associated with cubical appearance and the size range of 1.5-7, 2.0-7.5, and 2.0-8.0m for CCTWO01, CCTWO03, and CCTWO05, respectively. The EDX and XPS analyses show the presence of Ca, Cu, Ti, W, and O elements confirming the purity of these ceramics. The complex impedance and modulus (M) spectroscopy show that the dielectric constant (epsilon(r)) values of the W-doped CCTO were dominantly affected by the electrical properties of the grain boundary, which is also evident from the SEM micrographs. The grain-boundary resistance decreased with increasing tungsten content. The activation energies for the grain boundaries were calculated from the impedance and modulus data using the slope of the ln versus 1/T and were found to be in the range 0.62-0.67eV. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | WILEY | - |
dc.title | A Novel One-Step Flame Synthesis Method for Tungsten-Doped CCTO | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Chung, Hoeil | - |
dc.identifier.doi | 10.1111/jace.13930 | - |
dc.identifier.scopusid | 2-s2.0-84953383189 | - |
dc.identifier.wosid | 000368076800006 | - |
dc.identifier.bibliographicCitation | JOURNAL OF THE AMERICAN CERAMIC SOCIETY, v.99, no.1, pp.27 - 34 | - |
dc.relation.isPartOf | JOURNAL OF THE AMERICAN CERAMIC SOCIETY | - |
dc.citation.title | JOURNAL OF THE AMERICAN CERAMIC SOCIETY | - |
dc.citation.volume | 99 | - |
dc.citation.number | 1 | - |
dc.citation.startPage | 27 | - |
dc.citation.endPage | 34 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Ceramics | - |
dc.subject.keywordPlus | MODIFIED SOL-GEL | - |
dc.subject.keywordPlus | CHEMICAL OXIDATIVE POLYMERIZATION | - |
dc.subject.keywordPlus | GIANT DIELECTRIC-CONSTANT | - |
dc.subject.keywordPlus | CACU3TI4O12 CERAMICS | - |
dc.subject.keywordPlus | ONE-POT | - |
dc.subject.keywordPlus | IMPEDANCE | - |
dc.subject.keywordPlus | MODULUS | - |
dc.subject.keywordPlus | OXIDE | - |
dc.subject.keywordPlus | BEHAVIOR | - |
dc.subject.keywordPlus | GROWTH | - |
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