Fractal approach to ac impedance spectroscopy studies of ceramic materials

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorBranković, Goran
dc.creatorBranković, Zorica
dc.creatorJović, Vladimir D.
dc.creatorVarela, José Arana
dc.date2014-05-27T11:20:19Z
dc.date2016-10-25T18:17:13Z
dc.date2014-05-27T11:20:19Z
dc.date2016-10-25T18:17:13Z
dc.date2001-11-01
dc.date.accessioned2017-04-06T01:00:12Z
dc.date.available2017-04-06T01:00:12Z
dc.identifierJournal of Electroceramics, v. 7, n. 2, p. 89-94, 2001.
dc.identifier1385-3449
dc.identifierhttp://hdl.handle.net/11449/66600
dc.identifierhttp://acervodigital.unesp.br/handle/11449/66600
dc.identifier10.1023/B:JECR.0000027948.16316.bd
dc.identifierWOS:000173565000003
dc.identifier2-s2.0-0035520272
dc.identifierhttp://dx.doi.org/10.1023/B:JECR.0000027948.16316.bd
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/888142
dc.descriptionA novel fractal model for grain boundary regions of ceramic materials was developed. The model considers laterally inhomogeneous distribution of charge carriers in the vicinity of grain boundaries as the main cause of the non-Debye behaviour and distribution of relaxation times in ceramic materials. Considering the equivalent circuit the impedance of the grain boundary region was expressed. It was shown that the impedance of the grain boundary region has the form of the Davidson-Cole equation. The fractal dimension of the inhomogeneous distribution of charge carriers in the region close to the grain boundaries could be calculated based on the relation ds = 1 + β, where β is the constant from the Davidson-Cole equation.
dc.languageeng
dc.relationJournal of Electroceramics
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectCeramics
dc.subjectFractal
dc.subjectGrain boundary
dc.subjectImpedance spectroscopy
dc.subjectModel
dc.subjectCalculations
dc.subjectCarrier mobility
dc.subjectCharge carriers
dc.subjectElectric conductivity of solids
dc.subjectElectric impedance
dc.subjectFractals
dc.subjectGrain boundaries
dc.subjectMathematical models
dc.subjectRelaxation processes
dc.subjectSpectroscopy
dc.subjectDavidson-Cole equation
dc.subjectInhomogeneous distribution
dc.subjectNon-Debye relaxation
dc.subjectCeramic materials
dc.titleFractal approach to ac impedance spectroscopy studies of ceramic materials
dc.typeOtro


Este ítem pertenece a la siguiente institución