Synthesis and magnetic properties of cobalt ferrite with different morphology

Abstract

The cobalt ferrite was synthesized by wet precipitation method using cobalt chloride and Iron chloride solution with Hydrazine Hydrate precipitating agent. The precipitation was also carried out in the presence of surfactant CTAB to observe the change in magnetic properties and morphology of the samples. Different solvent were also used like di-ionized water and Ethylene Glycol for the precipitation process. The above obtained powder was calcined at different temperature (600°C and 800°C) and also sintered at different temperature (1000°C and 1200°C). Different characterization like SEM was done to visualize the morphology and particle size. The XRD analysis was done to know the phases present and the B-H curve to get the magnetization and corecivity of the powder. The corecivity decreased with the increase in sintering temperature and varied from 200-900 Oe. The XRD acquired showed pure phase of cobalt ferrite.