Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Nonlinear I-V electrical behaviour of doped CaCu3Ti4O12 ceramics
Year:2007
Research Areas
  • Materials,
  • Ceramics,
  • Physics - Soft condensed matter,
  • Magnetic materials
Information
Abstract
Abstract: this work a comparative Study of undoped CaCU3Ti4O12 (CCTO) and doped with Fe3+ (CCTOF) and Nb5+ (CCTON) ceramics, was aimed to modify the electronic transport. XRD patterns, FE-SEM microstructural analysis, impedance spectroscopy and I-V response curves were afforded to correlate the microstructure with the nonlinear I-V behaviour. The appearance of nonlinear behaviour in doped CCTO samples has been correlated with the ceramic microstructure that consists in n-type semiconductor grains, surrounded by a grain boundary phase based on CuO. The presence C of this secondary grain boundary phase is the responsible of the assisted liquid phase sintering in CCTO ceramics. Doped samples showed cleaner grain boundaries than CCTO and nonfinearity in the I-V response. (c) 2007 Elsevier Ltd. All rights reserved
International
Si
JCR
Si
Title
J EUR CERAM SOC
ISBN
0955-2219
Impact factor JCR
1,562
Impact info
Volume
27
Journal number
13
From page
3901
To page
3905
Month
SIN MES
Ranking
Participants
  • AUTOR: PILAR LERET (ICV-CSIC)
  • Autor: Jose de Frutos Vaquerizo (UPM)
  • AUTOR: DANIEL FERNANDEZ-HEVIA (INAEL-TOLEDO)
  • Autor: Jose Francisco Fernández Lozano (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Propiedades ópticas, eléctricas y magnéticas de materiales y sus aplicaciones (POEMMA)
  • Departamento: Física Aplicada a las Tecnologías de la Información
S2i 2019 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)