dc.contributor | Universidade Estadual Paulista (Unesp) | |
dc.contributor | Universidade Federal do ABC (UFABC) | |
dc.date.accessioned | 2021-06-25T10:12:26Z | |
dc.date.accessioned | 2022-12-19T22:02:50Z | |
dc.date.available | 2021-06-25T10:12:26Z | |
dc.date.available | 2022-12-19T22:02:50Z | |
dc.date.created | 2021-06-25T10:12:26Z | |
dc.date.issued | 2021-02-01 | |
dc.identifier | Materials Research Bulletin, v. 134. | |
dc.identifier | 0025-5408 | |
dc.identifier | http://hdl.handle.net/11449/205259 | |
dc.identifier | 10.1016/j.materresbull.2020.111071 | |
dc.identifier | 2-s2.0-85092038648 | |
dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/5385857 | |
dc.description.abstract | In this study, CaCu3Ti4O12 ceramic composites were prepared through solid-state reaction by adding Sr2+ and removing Cu2+. Application of the Rietveld method and structure refinement revealed the presence of pure CaCu3Ti4O12 (CCTO) phase for x = 0.00 and Sr0.75Ca0.25TiO3 (SCTO) phase for sample x = 3.00. The other samples presented a mixture of both phases. The sample microstructures showed that increasing the amount of SCTO phase led to the formation of cubic CCTO grains. The x = 0.15 sample presented giant dielectric permittivity results, 3.28 × 105, associated with increased grain size and greater grain boundary capacitance, thus indicating it could be a promising material for class III capacitors. On the other hand, greater presence of the SCTO phase displayed potential non-ohmic behavior, as seen with sample x = 2.70, which has a high nonlinear coefficient (α ∼ 30.0) and low current leakage, (IL ∼ 9.0 μA). | |
dc.language | eng | |
dc.relation | Materials Research Bulletin | |
dc.source | Scopus | |
dc.subject | CaCu3Ti4O12 | |
dc.subject | Dielectric properties | |
dc.subject | Non-ohmic behavior | |
dc.subject | Storage device | |
dc.title | Dielectric and non-ohmic analysis of Sr2+ influences on CaCu3Ti4O12-based ceramic composites | |
dc.type | Artículos de revistas | |