Fundamental Studies on Ferrite Manufacturing Process

(Part 2) The Properties of Ferrite Powder

Abstract

The effects of calcination and ball-milling on the particle size distribution, tap density and pressing behavior of the the Ni⋅Zn and Mn⋅Zn ferrite powders have been presented in this paper. It is shown that the ball-milling has two different effects on the properties of ferrite powder depending on whether the temperature of clacination is above or below the recrystallization temperature. It is found that striking correlations exist among these properties and also is found that the tap density is one of the most useful and convenient parameters not only for the estimation of other powder properties but also for the criterion of ferrite powder processing performance.