Structural and magnetic characterization of (Ba,Sr)-hexaferrite powders

Abstract

Results on magnetic and structural characterization of ferrimagnetic compounds of BaxSr1-xFe12O19 (x=0.0, 0.25, 0.50, 0.75 and 1.0) prepared by the conventional ceramic method are reported. The samples were systematically examined using atomic force microscopy (AFM), X-ray diffraction and vibrating sample magnetometer. Structural and magnetic differences among the specimens were observed. The relations between structural features and magnetic properties are discussed. The presintering temperatures of the samples were 800°C and 1,000°C. The specimens were sintered at 1,200°C for one hour.