The control of particle size for fine MgFe2O4 powder using bead mill and its heating ability in AC magnetic field

Abstract

The sized nano MgFe2O4 ferrite powder having heat generation ability in an AC magnetic field was prepared by bead milling and studied for application in thermal coagulation therapy. The heat ability was improved by a decrease in crystal size using bead mill. The maximum ability obtained for the sample having 6.2 nm in crystal size. After the milling, the calcination of the sample was also effective for the improvement of the heat ability.