Impedance spectroscopy of n-doped (Ba,Sr)TiO3 ceramics prepared by modified low temperature aqueous synthesis (Articolo in rivista)

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  • Impedance spectroscopy of n-doped (Ba,Sr)TiO3 ceramics prepared by modified low temperature aqueous synthesis (Articolo in rivista) (literal)
Anno
  • 1999-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/S0955-2219(98)00312-4 (literal)
Alternative label
  • M. Viviani; P. Nanni; M.T. Buscaglia; M. Leoni; V. Buscaglia; L. Centurioni (1999)
    Impedance spectroscopy of n-doped (Ba,Sr)TiO3 ceramics prepared by modified low temperature aqueous synthesis
    in Journal of the European Ceramic Society; ELSEVIER APPL SCI PUBL LTD,, barking Essex (Regno Unito)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • M. Viviani; P. Nanni; M.T. Buscaglia; M. Leoni; V. Buscaglia; L. Centurioni (literal)
Pagina inizio
  • 781 (literal)
Pagina fine
  • 785 (literal)
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  • http://puma.isti.cnr.it/linkdoc.php?idauth=11&idcol=11&icode=1999-A0-005&authority=cnr.ieni.ge&collection=cnr.ieni&langver=it (literal)
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  • 19 (literal)
Rivista
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  • 5 (literal)
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  • 6-7 (literal)
Note
  • ISI Web of Science (WOS) (literal)
  • Scopu (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Instituteof Chemistry, Facultyof Engineering, Universityof Genoa, P.le J.F. Kennedy Pad. D, I-16129 Genoa, Italy; Instituteof Physical-Chemistryof Materials-MITER CNR, Via De Marini 6, I-16149 Genoa, Italy; Departmentof Electric Engineering, Universityof Genoa, Via all'Opera Pia 11A, I-16145 Genoa, Italy (literal)
Titolo
  • Impedance spectroscopy of n-doped (Ba,Sr)TiO3 ceramics prepared by modified low temperature aqueous synthesis (literal)
Abstract
  • Low temperature aqueous synthesis (LTAS) has been applied to the preparationof La or Nb-doped (Ba,Sr)TiO3 powders. Doping elements have been mixed to precursors, in order to directly obtain crystalline powders with modified composition. Similar powders, doped by conventional wet ball-milling process, have been also prepared for comparison. Ceramic samples have been obtained by isothermal sintering in air at different temperatures. Microstructural characterisation showed the presenceof a secondary phase, identified as a Ti-rich barium titanate compound.Impedance spectroscopy (IS) has been used to study the PTCR behaviourof such materials. IS results are analysed, taking into account effectof the secondary phase, to discuss bulk and grain boundary characteristics. (literal)
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