Effect of Synthesis Parameters on the Magnetic Properties of Manganese Zinc Ferrites

The magnetic properties which make high permeability manganese zinc ferrites useful in telecommunications applications are strongly affected by both the composition and the synthesis method. Some of the effects discussed are: (a) variation of the magnitude and temperature dependence of the permeability as a function of the composition, (b) effect of the type of ferric oxide used in the synthesis on these two magnetic parameters, (c) effect of the sintering atmosphere on the disaccommodation and the temperature dependence of the permeability, and (d) the relation between the ferrous ion concentration and the disaccommodation characteristics of the ferrite materials.