Enhanced energy storage and temperature-stable dielectric properties in (1-x)[(Na0.4K0.1Bi0.5)0.94Ba0.06TiO3]-xLa0.2Sr0.7TiO3 lead-free relaxor ceramics
DC Field | Value | Language |
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dc.contributor.author | Yadav, Arun Kumar | - |
dc.contributor.author | Yoo, Il-Ryeol | - |
dc.contributor.author | Choi, Seong-Hui | - |
dc.contributor.author | Park, Je-Yeon | - |
dc.contributor.author | Kim, Min-Seok | - |
dc.contributor.author | Cho, Jiung | - |
dc.contributor.author | Song, Hyun-Cheol | - |
dc.contributor.author | Cho, Kyung-Hoon | - |
dc.date.accessioned | 2024-05-20T06:00:23Z | - |
dc.date.available | 2024-05-20T06:00:23Z | - |
dc.date.issued | 2024-05-25 | - |
dc.identifier.issn | 0925-8388 | - |
dc.identifier.issn | 1873-4669 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/33083 | - |
dc.description.abstract | With the continuous growth in sustainable and renewable technologies, ceramic capacitors are emerging as a promising energy storage device. Lead-free (1-x)[(Na0.4K0.1Bi0.5)0.94Ba0.06TiO3]-xLa0.2Sr0.7TiO3 (0 ≤ x ≤ 0.40) ceramics were prepared using the solid-state reaction technique for obtaining relaxor characteristics with improved energy storage density, efficiency, and temperature stability of dielectric permittivity. A high recoverable energy density (Wr) ∼ 2.39 J/cm3 with a good efficiency (η) of ∼ 75.21% was obtained for x = 0.30 composition under 220 kV/cm applied field. The specimen x = 0.30 exhibited excellent fatigue resistance during 105 cycles and good temperature stability of energy storage characteristics (Wr > 0.87 J/cm3, η > 74%) in the temperature range of 25–180 °C under 100 kV/cm. In addition, the temperature range in which the dielectric permittivity variation was less than ±15% was very wide (204 °C (63–267 °C) and 275 °C (39–314 °C) for x = 0.30 and 0.20 specimens, respectively). Significant improvements in material performance were attributed to A-site engineering, which resulted in a mixture of P4bm and R3c polar nano regions (PNRs), leading to reduced hysteresis loss and temperature-stable dielectric permittivity. Additionally, the size of PNRs ranged between 3 and 6 nm, with the P4bm phase dominating in the x = 0.30 specimen, leading to a large maximum polarization under an applied electric field. Therefore, (1-x)[(Na0.4K0.1Bi0.5)0.94Ba0.06TiO3]-xLa0.2Sr0.7TiO3 relaxor ceramics are promising for high energy density materials and electronic applications requiring high permittivity stability over a wide temperature range. © 2024 | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | Elsevier Ltd | - |
dc.title | Enhanced energy storage and temperature-stable dielectric properties in (1-x)[(Na0.4K0.1Bi0.5)0.94Ba0.06TiO3]-xLa0.2Sr0.7TiO3 lead-free relaxor ceramics | - |
dc.type | Article | - |
dc.publisher.location | 스위스 | - |
dc.identifier.doi | 10.1016/j.jallcom.2024.174016 | - |
dc.identifier.scopusid | 2-s2.0-85187225482 | - |
dc.identifier.wosid | 001224790300001 | - |
dc.identifier.bibliographicCitation | Journal of Alloys and Compounds, v.985 | - |
dc.citation.title | Journal of Alloys and Compounds | - |
dc.citation.volume | 985 | - |
dc.type.docType | Article | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Metallurgy & Metallurgical Engineering | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Metallurgy & Metallurgical Engineering | - |
dc.subject.keywordPlus | BATIO3-BI(MG2/3NB1/3)O-3 CERAMICS | - |
dc.subject.keywordPlus | ELECTRICAL-PROPERTIES | - |
dc.subject.keywordPlus | DENSITY | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | STRAIN | - |
dc.subject.keywordPlus | EVOLUTION | - |
dc.subject.keywordPlus | SYSTEM | - |
dc.subject.keywordPlus | FERROELECTRICS | - |
dc.subject.keywordPlus | STABILITY | - |
dc.subject.keywordPlus | BEHAVIOR | - |
dc.subject.keywordAuthor | Ceramics | - |
dc.subject.keywordAuthor | Energy storage | - |
dc.subject.keywordAuthor | Lead-free perovskite | - |
dc.subject.keywordAuthor | Relaxor ferroelectrics | - |
dc.subject.keywordAuthor | Temperature stability | - |
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