Study of Structural and Magnetic Properties of CuFe2O4 Tuning by Heat Treatment

Abstract

This study evaluates the relationship with microstructural and electromagnetic properties dependences on sintering temperature of bulk Copper ferrites synthesized by the solid state reaction method calcined at Ts 950°C, 1050°C, 1100°C and 1150°C. These properties are examined by XRD, DTA and TGA, SEM, B–H Loops Tracer, VSM and Electrometer. The affirmation of single-phase cubic spinel structured has been observed by XRD pattern for all Ts. Under the influence of heat treatment, the grain sizes escalate from 3.63 μm to 6.48 μm due to the movement of grain boundaries. Softer ferromagnetic nature of sample for all Ts has been signed by narrow hysteresis loops. The assessment of magnetic properties manifests that the saturation magnetization as well as permeability amplifies with Ts which is correlated to the increase of the grain size. Frequency dependence dielectric constant (ε′) shows the usual dielectric nature of ferromagnetic materials. The results of all these measurements clearly emphasize the effect of sintering temperature to bring a significant change in above mention properties which is a prerequisite to the materials applications.