TEM and XRD investigation of Fe2O3-Al2O3 system
نویسندگان
چکیده
Ovidius University of Constanta, Department of Physics, 124 Mamaia Blvd, 900527, Romania ___________________________________________________________________________________________ Abstract. A series of Fe2O3-Al2O3 mixed systems with composition ranging from 1 to 9% of Al2O3 were prepared by a traditional chemical method and examined for structural characteristics. XRD spectra and SAED patterns obtained form TEM investigations showed the presence of α Al2O3 and α – Fe2O3 phases. The mean grain size of the crystalline aggregates in the system was calculated from BF-TEM images using the lognormal curve and verified with the Sherrer’s formula applied on XRD diagrams, being established in the domain of 7-9 nm.
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