Crystal chemistry and conductivity studies in the system La0.5+x+yLi0.5-3xTi1-3yCr3yO3

Authors
Martinez-Sarrion, ML Mestres, L Morales, M Herraiz, M
Citation
Ml. Martinez-sarrion et al., Crystal chemistry and conductivity studies in the system La0.5+x+yLi0.5-3xTi1-3yCr3yO3, J SOL ST CH, 155(2), 2000, pp. 280-285
Citations number
17
Categorie Soggetti
Inorganic & Nuclear Chemistry
Journal title
JOURNAL OF SOLID STATE CHEMISTRY
ISSN journal
00224596 → ACNP
Volume
155
Issue
2
Year of publication
2000
Pages
280 - 285
Database
ISI
SICI code
0022-4596(200012)155:2<280:CCACSI>2.0.ZU;2-#
Abstract
The stoichiometry polymorphism and electrical behavior of solid solutions L a0.5+x+yLi0.5-3xTi1-3yCr3yO3 with perovskite-type structure were studied. D ata are given in the form of a solid solutions triangle, phase diagrams, XR D patterns for the three polymorphs, A, beta, and C, composition dependence of their lattice parameters, and ionic and electronic conductivity plots. Micro-structure and composition were studied by SEM/EDS and electron probe microanalysis. These compounds are mixed conductors. Ionic conductivity dec reased when the amount of lithium diminished and electronic conductivity in creased with chromium content. (C) 2000 Academic Press.