Electrical properties of pure and Li sub(2)O-doped CuO/Fe sub(2)O sub(3) system precalcined at different temperatures

The electrical properties of pure and Li sub(2)O-doped CuO/Fe sub(2)O sub(3) solids were investigated. Pure and variously doped solids were subjected to thermal treatment 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...

Full description

Saved in:
Bibliographic Details
Published in:Solid state ionics 2001-04, Vol.140 (3-4), p.395-403
Main Authors: Turky, G, Soliman Selim, M, El-Shobaky, G A
Format: Article
Language:English
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The electrical properties of pure and Li sub(2)O-doped CuO/Fe sub(2)O sub(3) solids were investigated. Pure and variously doped solids were subjected to thermal treatment 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 Li sub(2)O added on the electrical conductivity sigma , activation energy E sub(a) and dielectric constant epsilon * were studied. The variation of epsilon ' and epsilon double prime as a function of frequency for pure and variously doped solids precalcined at different temperatures was also investigated. The results obtained were discussed. copyright 2001 Elsevier Science B.V.
ISSN:0167-2738