أعضاء هيئة التدريس - جامعة بنها
Effect of growing barium ferrite phases on the electrical conductivity in Fe2O3/BaCo3 composites.
Mat. Chem. • 1998
معلومات البحث
المؤلفون
M . K. El-Mansy , N. M. Shash , M.. H. Makled , E. M.. Diefallah.
الكلمات المفتاحية
Heat treatment; Barium ferrite; Electrical conductivity
المجلة العلمية
Mat. Chem.
الناشر
Elsevier
المجلد
52
العدد
1
الصفحات
71-77
publication.type
International
رابط البحث
Open Link
المواد المرفقة
Not Available
الملخص
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 ...