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Effect of growing barium ferrite phases on the electrical conductivity in Fe2O3/BaCo3 composites.
Mat. Chem. • 1998
Publication Information
Authors
M . K. El-Mansy , N. M. Shash , M.. H. Makled , E. M.. Diefallah.
Keywords
Heat treatment; Barium ferrite; Electrical conductivity
Journal
Mat. Chem.
Publisher
Elsevier
Volume
52
Issue
1
Pages
71-77
publication.type
International
Paper Link
Open Link
Supplementary Materials
Not Available
Abstract
The effect of heat treatment on the temperature dependence of electrical conduction for a
mixture of Fe2O3 and BaCO3 with 1: 1 mole ratio has been studied between room
temperature and 573 K. The results suggest protonic conduction at a relatively low
temperature range, whereas small polaron jumping between Fe2+ and Fe3+ dominates at a
relatively high temperature range. The electrical conduction at high fields exhibits a
quadratic dependence of current on the applied potential which predicts the formation of ...
mixture of Fe2O3 and BaCO3 with 1: 1 mole ratio has been studied between room
temperature and 573 K. The results suggest protonic conduction at a relatively low
temperature range, whereas small polaron jumping between Fe2+ and Fe3+ dominates at a
relatively high temperature range. The electrical conduction at high fields exhibits a
quadratic dependence of current on the applied potential which predicts the formation of ...