摘要
Fe/Al2O3 nanocomposites prepared by using the sol-gel technique were reduced in H： atmosphere at different temperatures, and the corresponding Fe/Al2O3 nanocomposites were obtained after the reduction of Fe/Al2O3 nanocomposites at 1173 K. The structures and properties of the specimens were studied by X-ray diffraction （XRD）, Mossbauer spectroscopy（ MS）, and vibrating sample magnetometry（VSM）. The results show that the reduction temperature has a significant influence on the structure, the grain size, and the magnetic properties of the specimens.
Fe/Al2O3 nanocomposites prepared by using the sol-gel technique were reduced in H： atmosphere at different temperatures, and the corresponding Fe/Al2O3 nanocomposites were obtained after the reduction of Fe/Al2O3 nanocomposites at 1173 K. The structures and properties of the specimens were studied by X-ray diffraction （XRD）, Mossbauer spectroscopy（ MS）, and vibrating sample magnetometry（VSM）. The results show that the reduction temperature has a significant influence on the structure, the grain size, and the magnetic properties of the specimens.
基金
Supported by the Jilin Distinguished Young Scholars'Program(No.20020118) and the National Key Laboratory of SuperhardMaterials, Jilin University(No. 2002006)
