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   Reducing dielectric losses in MnZn Ferrites   [View] 
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 Author(s)   J. Zhu; K.J. Tseng 
 Abstract   We investigated the complementary effects of TiO2 and MoO3 additives on the magnetic properties, the core loss and the dielectric properties of MnZn ferrites. We analyzed the composition factors influencing the permeability of MnZn ferrites. A high initial permeability base ZnO-MnO-Fe2O3 composition ratio has been selected. Electrical and dielectric analyses indicated that the introduction of TiO2 can improve the high frequency loss properties of MnZn ferrite cores, but such introduction will also has negative effect on the magnetic properties of the sintered samples. Introduction of MoO3 can alleviate the negative influence of TiO2 and also reduce the internal polarization intensity. As a result, the dielectric constant and corresponding dielectric loss may be reduced. Experimental results are given in the paper. 
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Filename:EPE2003-PP1056 - Zhu
Filesize:451.8 KB
 Type   Members Only 
 Date   Last modified 2003-10-21 by Unknown