| publication name | Effect of growing barium ferrite phases on the electrical conductivity in Fe2O3/BaCo3 composites. |
|---|---|
| Authors | M . K. El-Mansy , N. M. Shash , M.. H. Makled , E. M.. Diefallah. |
| year | 1998 |
| keywords | Heat treatment; Barium ferrite; Electrical conductivity |
| journal | Mat. Chem. |
| volume | 52 |
| issue | 1 |
| pages | 71-77 |
| publisher | Elsevier |
| Local/International | International |
| Paper Link | http://www.sciencedirect.com/science/article/pii/S0254058498800096 |
| Full paper | download |
| 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 ...