XRD and HREM Studies of Structural Phases in Non-Stoichiometric Complex Iron Oxides
نویسندگان
چکیده
The influence of prolonged ball milling on structural changes of hexagonal and spinel type complex iron oxides has been studied by x-ray diffraction and high resolution electron microscopy. The XRD and HREM results for ball milled SrFel2Olg ferrite show fast decomposition and formation of Fe203 and SrO simple oxides. Microstructural developments for a powder mixture of Co(OH)2 and Fe203 show the formation of cubic type structure (spinel). By comparison with the XRD results, HREM analysis confirmed local phase separation, with magnetic Fe304 and CoFe204 nanosize (10-30 nm) particles being formed.
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