Topographic characterization of barium-hexaferrite powders using AFM Article uri icon


  • We report results on topographic characterization of ferromagnetic compounds of BaFe12O19 prepared by chemical coprecipitation and conventional ceramic methods. Since it is desirable to use lower sintering temperatures without degrading the magnetic properties of the ferrites prepared by the ceramic method, they were doped with SiO2 to enhance the densification. The samples have been examinated by atomic force microscopy (AFM) and a difference in the grain size between both kind of specimens was observed. The samples prepared by the coprecipitation method were sintered at 1373°K and the oxide powders prepared by mechanical milling at 1453°K, during 1 hour.

publication date

  • 1996-01-01