Electrical conductivity of Ag-Na ion exchanged soda-lime glass

dc.contributorUniversidade Estadual Paulista (Unesp)
dc.contributorUniversidade de São Paulo (USP)
dc.creatorBraunger, Maria L. [UNESP]
dc.creatorEscanhoela, Carlos A.
dc.creatorZiemath, Ervino C. [UNESP]
dc.date2015-03-18T15:54:04Z
dc.date2015-03-18T15:54:04Z
dc.date2014-11-01
dc.date.accessioned2023-09-09T11:10:36Z
dc.date.available2023-09-09T11:10:36Z
dc.identifierhttp://dx.doi.org/10.1016/j.ssi.2014.07.015
dc.identifierSolid State Ionics. Amsterdam: Elsevier Science Bv, v. 265, p. 55-60, 2014.
dc.identifier0167-2738
dc.identifierhttp://hdl.handle.net/11449/116750
dc.identifier10.1016/j.ssi.2014.07.015
dc.identifierWOS:000342547900009
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8766235
dc.descriptionThis paper reports on a study of the influence of silver on the electrical conductivity of Ag-Na ion exchanged soda-lime-silica glass. A glass of 22Na(2)O.8CaO.70SiO(2) (mol %) composition was prepared and silver was introduced into its samples by Ag-Na ion exchange at 350 degrees C for 1 h. The ion exchanged samples were further subjected to a thermal treatment at 500 degrees C for 24 h. Complex impedance diagrams (-Z '' vs. Z' plots) at several temperatures were obtained to calculate the activation energy for the dc electrical conductivity, Ea. The electrical conductivity of the ion exchanged sample is close to that of the pristine sample. The complex impedance plots of this sample show a tail in the low frequency range assigned to the non-uniform distribution of silver in the surface layers and stresses produced by the thermal and chemical temperings. The electrical conductivity of the layers was lower than that of the pristine glass. The further thermal treatment reduced the conductivity of the sample due to the formation of metallic silver nanopartides in the glass matrix and the lower concentration of the mobile Na+ ions. UV-visible optical absorption spectra showed an absorption band at 420 nm attributed to the presence of silver nanoparticles in the thermally treated sample. (C) 2014 Elsevier B.V. All rights reserved.
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionUniv Estadual Paulista, FCT, Dept Fis Quim & Biol, Presidente Prudente, SP, Brazil
dc.descriptionUniv Sao Paulo, Inst Fis Sao Carlos, Sao Carlos, SP, Brazil
dc.descriptionUniv Estadual Paulista, IGCE, Dept Fis, Rio Claro, SP, Brazil
dc.descriptionUniv Estadual Paulista, FCT, Dept Fis Quim & Biol, Presidente Prudente, SP, Brazil
dc.descriptionUniv Estadual Paulista, IGCE, Dept Fis, Rio Claro, SP, Brazil
dc.descriptionFAPESP: 08/07304-7
dc.descriptionFAPESP: 08/07238-4
dc.format55-60
dc.languageeng
dc.publisherElsevier B.V.
dc.relationSolid State Ionics
dc.relation2.751
dc.relation0,856
dc.rightsAcesso restrito
dc.sourceWeb of Science
dc.subjectImpedance spectroscopy
dc.subjectSilicate glasses
dc.subjectAg-Na ion exchange
dc.subjectSilver nanoparticles
dc.titleElectrical conductivity of Ag-Na ion exchanged soda-lime glass
dc.typeArtigo


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