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. |