Sintering and mass transport features of (Sn,Ti)O2 polycrystalline ceramics

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorBueno, Paulo Roberto
dc.creatorLeite, E. R.
dc.creatorBulhoes, L. O S
dc.creatorLongo, Elson
dc.creatorPaiva-Santos, C. O.
dc.date2014-05-27T11:20:39Z
dc.date2016-10-25T18:18:36Z
dc.date2014-05-27T11:20:39Z
dc.date2016-10-25T18:18:36Z
dc.date2003-05-01
dc.date.accessioned2017-04-06T01:05:35Z
dc.date.available2017-04-06T01:05:35Z
dc.identifierJournal of the European Ceramic Society, v. 23, n. 6, p. 887-896, 2003.
dc.identifier0955-2219
dc.identifierhttp://hdl.handle.net/11449/67268
dc.identifierhttp://acervodigital.unesp.br/handle/11449/67268
dc.identifier10.1016/S0955-2219(02)00234-0
dc.identifier2-s2.0-0037407825
dc.identifierhttp://dx.doi.org/10.1016/S0955-2219(02)00234-0
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/888743
dc.descriptionDifferent (Sn,Ti)O2 compositions were sintered at 1450 °C for 2 h with the purpose of investigating their sintering and mass transport properties. Highly dense ceramics were obtained and their structural properties studied by X-ray diffraction and scanning electron microscopy. The changes in lattice parameters were analyzed by the Rietveld method and two mass transport mechanisms were observed during sintering in different temperature ranges, evidenced by the linear shrinkage rate as a function of temperature. The effect of the concentration of TiO2 on mass transport and densiffication during sintering was analyzed by considering the intrinsic defects. System densiffication was attributed to a mass transport mechanism in the SnO2 matrix, caused by the presence of TiO2, which formed a solid solution phase. The change in the mass transport mechanism was attributed to chemical bonding between SnO2 and TiO2, which improves ionic difusion as the concentration of TiO2 increased in (Sn,Ti)O2 compositions. © 2002 Elsevier Science Ltd. All rights reserved.
dc.languageeng
dc.relationJournal of the European Ceramic Society
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subject(Sn,Ti)O2
dc.subjectMicrostructure- final
dc.subjectSintering
dc.subjectChemical bonds
dc.subjectCrystal defects
dc.subjectDensification
dc.subjectLattice constants
dc.subjectMass transfer
dc.subjectPhase composition
dc.subjectPolycrystalline materials
dc.subjectScanning electron microscopy
dc.subjectSolid solutions
dc.subjectX ray diffraction
dc.subjectIntrinsic defects
dc.subjectCeramic materials
dc.subjectceramics
dc.subjectmass transfer
dc.subjectsintering
dc.titleSintering and mass transport features of (Sn,Ti)O2 polycrystalline ceramics
dc.typeOtro


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