Preparation and Characterization of Mn Doped NiCuZn ferrite.
B. D. Ingalea, M. A. Barotea*
Journal Title:Journal of Chemical, Biological and physical sciences
The ferrite composition [Ni0.25-xMn.xCu.2Zn0.55] Fe2O4 with values
x= 0.00, 0.05, 0.1 were synthesized by auto combustion method. XRD analysis of
prepared ferrite powder shows the cubic spinal structure. The crystallite size of
prepared ferrite is varied from 22.3 to 39.3 nm the resultant powder were calcined
at 650 0C/2hr and the pressed ferrite were sintered at 950 0C/4hr the initial
permeability, dc resistivity were measured with frequency range 100Hz to 5MHz.
The permeability is found to be increase up to x=0.1 and dc resistivity was
decreased with Mn Substitution. The very high permeability in the composition
x=0.1 was due to better densification and lower magnitostriction constant. The
lattice parameter are also slightly increases from x=0 to=0.1. The composition is
better than the NiCuZn based material. It is useful for Multilayer chip inductor.