Structural analysis of the Mn–Zn ferrites using XRD technique

Manganese–zinc ferrite samples, Mn x Zn 1− x Fe 2O 4, with x = 0.66, 0.77, 0.88, 0.99 were prepared by conventional double-sintering method, using low cost Fe 2O 3 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.