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Memorias de investigación
Communications at congresses:
Effect of the synthesis route and the TiO2 polymorph in the electric properties of CaCu3Ti4O12
Year:2010
Research Areas
  • Materials for electric engineering and electronics
Information
Abstract
The objective of this study is determining the influence of the synthesis route in the microstructural and electric properties of the CaCu3Ti4O12 (CCTO) prepared using two different TiO 2 polymorphs showing different crystalline structure and reactivity. CCTO was prepared by conventional synthesis (CS), including synthesis by solid state reaction following with a sintering process (CS), and through reaction sintering (RS), in which the synthesis and sintering of the materials is carried out in one single step. Microstructural characterization have been carried out by XRD, FE-SEM, EDS and AFM and electrical characterization by means impedance spectroscopy and I-V response to correlate the microstructure with the electrical behaviour. The use of different TiO 2 polymorphs gives place to microstructural differences. Samples prepared by reaction sintering show less dependence of the dielectric constant with the frequency and better I-V response.
International
Si
Congress
XII ELECTROCERAMICS
960
Place
NTNU - Gl¿gen Campus Trondheim (HOLANDA)
Reviewers
Si
ISBN/ISSN
84-8181-227-7
Start Date
13/06/2010
End Date
16/06/2010
From page
0
To page
0
PROCEDINGS OF DE XII ELECTROCERAMICS
Participants
  • Autor: Jose de Frutos Vaquerizo (UPM)
  • Autor: Jose Francisco Fernández Lozano (UPM)
  • Autor: Miguel Ángel De La Rubia López (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Propiedades ópticas, eléctricas y magnéticas de materiales y sus aplicaciones (POEMMA)
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