In this work ultrafine single phase SrFe12019
powders were prepared using SrCc) and FeCI) as raw
material. The materials were then milled in high energy
mills for 0.5 to 24 hours. The powders were then calcined
between 700 and 1000 °C for 0.5 h with different heating
rates. The calcined powders were then washed with
deionized water for several times, to remove undesired
stontium chloride salt. XRD examinations were used to
characterize the prepared ferrites. To measure saturation
magnetization and coercive force of the samples, a vibrating
sample magnetometer was used. The magnetic results were
compared with those obtained in conventional ceramic
technique and were discussed according to core-shell model.