Electrical properties of pure and Li2O-doped CuO/Fe2O3 system precalcined at different temperatures

Citation
G. Turky et al., Electrical properties of pure and Li2O-doped CuO/Fe2O3 system precalcined at different temperatures, SOL ST ION, 140(3-4), 2001, pp. 395-403
Citations number
23
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
SOLID STATE IONICS
ISSN journal
01672738 → ACNP
Volume
140
Issue
3-4
Year of publication
2001
Pages
395 - 403
Database
ISI
SICI code
0167-2738(200104)140:3-4<395:EPOPAL>2.0.ZU;2-0
Abstract
The electrical properties of purl and Li2O-doped CuO/Fe2O3 solids were inve stigated. Pure and Variously doped solids were subjected to thermal treatme nt at 1073-1273 K and the amount of dopant was varied between 0.84 to 3.36 mol%. The effect of precalcination temperature and amount of Li2O added on the electrical conductivity sigma, activation energy E-a and dielectric con stant epsilon* were studied. The Variation of epsilon ' and epsilon " as a function of frequency for pure and variously doped solids precalcined at di fferent temperatures was also investigated. The results obtained were discu ssed. (C) 2001 Elsevier Science B.V. All rights reserved.