Observatorio de I+D+i UPM

Memorias de investigación
Communications at congresses:
?Propiedades eléctricas de vidrios con base en TeO2 modificados con cationes divalentes?
Year:2013
Research Areas
  • Physics chemical and mathematical,
  • Engineering
Information
Abstract
ABSTRACT TeO2 glasses have attracted great interest as potential solid electrolytes 1. This work presents a systematic study of systems of the type: xMO (1-x) [0.5MoO3.0.5V2O5] 2TeO2 (M: Mg2+) with x values of 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9 manufactured by quenching technique. The amorphicity of the compositions thus prepared, was confirmed using X-ray diffraction and structural analysis by microscopic techniques. The study of the electrical properties of these glasses is performed by impedance spectroscopy at a temperature range of 300 to 700 K and for the frequency range from 10-3 to 107 Hz. Data of ionic conductivity and activation energy is provided according to Arrhenius model, analyzing the influence of the composition in each case. Additionally we study anomalous behavior of the electrical response at low frequencies, and support the interpretation of these phenomena with the Raman study of different compositions. It reveals the presence of thermally stimulated currents (TSC) and analyzed the reversibility of the same. Agradecimientos: Este trabajo está financiad
International
Si
Congress
13 SAM-CONAMET 13 INTERNATIONAL CONGRESS OF SCIENCIA AND TECHNOL. M. MAT.
960
Place
IGUAZU-ARGENTINA
Reviewers
Si
ISBN/ISSN
0000-0000
Start Date
20/08/2013
End Date
23/08/2013
From page
918
To page
918
SAM-CONAMET 2013
Participants
  • Autor: Cintia Soledad Terny (UPM)
  • Autor: Miguel Ángel De La Rubia López (UPM)
  • Autor: ROBERTO E ALONSO (UNLP-ARGENTINA)
  • Autor: MARISA FLECHERO (UNLP-ARGENTINA)
  • Autor: Jose de Frutos Vaquerizo (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Propiedades ópticas, eléctricas y magnéticas de materiales y sus aplicaciones (POEMMA)
  • Centro o Instituto I+D+i: Centro de Materiales y Dispositivos Avanzados para Tecnologías de Información y Comunicaciones
  • Departamento: Física Aplicada a las Tecnologías de la Información
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