SrFe12O19 fine particles were synthesized by the sol-gel method and heat tr
eatment was carried out in oxygen-controlled atmosphere. SrFe12O19 hexaferr
ite was obtained at 250 degreesC. The effect of the SrCO3 phase hindering t
he synthesis of the hexaferrite in air atmosphere at lower temperatures is
analyzed. The samples were studied by infrared spectroscopy and X-ray diffr
action. The morphology of the samples was analyzed by transmission electron
microscope (TEM). Grain size was determined by X-ray diffraction. (C) 2001
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