Structural analysis of the Mn-Zn ferrites using XRD technique

Manganese-zinc ferrite samples, MnxZn1-xFe2O4, with x=0.66, 0.77, 0.88, 0.99 were prepared by conventional double-sintering method, using low cost Fe2O3 with 0.5 wt.% of Si as an impurity, to improve their properties. The chemical phase analysis has been carried out by X-ray powder diffraction (XRD) method, which confirms the formation of the ferrite structure. Lattice constant increases proportionally to the Mn content (x). The mass density of the ferrites was found to be increasing, whereas X-ray density depends on the lattice constant and molecular weight of the samples and tends to decrease with increasing Mn concentration. The porosity, calculated using both densities, also shows a decreasing behaviour with increase in manganese content. (c) 2004 Published by Elsevier B.V.