Development of Mn-Zn Ferrite by controlling its microstructure.

Abstract

Manganese-Zinc Ferrite is a very high permeability magnetic material. The permeability is depended on the amount of manganese and zinc used in the synthesis of ferrite material. In different literatures, there are several works upon the varying manganese and zinc content Manganese-Zinc Ferrite. The present work of project is mainly focused on the differences in the magnetization by analysing the amount of manganese, zinc and ferrite used, firing temperature of the pressed sample, the amount of unreacted compound present and the microstructure of the sample. First, powder of MnO©ü, ZnO and Fe©üO©ý were mixed by pot milling. After calcination the powder at 950¡ÆC, the powders were pressed into pellet. For the phase formation, the powder were characterized by using XRD and for the microstructure analysis, the powder were characterized by using SEM. The pellet of different composition were sintered at different temperature and characterized for apparent porosity, bulk density, phase formation, microstructure and B-H loop.