Effects of soaking time and Mn additives on the ferroelectric properties of Co0.6Zn0.4Fe2O4 ferrites

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Tanta Univ, Tanta, Egypt [1 ]
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InterCeram | / 6卷 / 403-405期
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Additives - Cobalt compounds - Composition - Electric fields - Electrons - Ferroelectricity - Ions - Iron - Manganese - Polarization - Sintering - Thermal effects;
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摘要：
The effect of soaking time during sintering of Co0.6Zn0.4Fe2O4 on the ferroelectric polarization was studied. There is a noticeable increase in the ferroelectric polarization with temperature for 4 h soaking time. Above 4 h, the number of Fe2+ ions decrease at the octahedral sites. The pronounced increase in Fe2+ at the B sites increases the ferroelectric polarization on the surface of the samples. The rising temperature increases the hopping mechanism of electrons between Fe2+ and Fe3+ ions which are available for polarization gains. The composition of Co0.6Zn0.4Fe2-xO4 where x = 0.2 was found to obtain the best ferroelectric properties for technological applications.
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