Preparation and Characterization of Fe/Al2O3 Nanocomposites

Chemical Research in Chinese Universities ›› 2006, Vol. 22 ›› Issue (4): 432-434.

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Preparation and Characterization of Fe/Al₂O₃ Nanocomposites

LI Hai-bo^1,3, LIU Mei^1,2, LU Yang¹, XU Ying¹, YU Wen-xue²

1. Physical College, Jilin Normal University, Siping 136000, P. R. China;

2. Department of Materials Science and Technology, Jilin University, Changchun 130023, P. R. China;

3. National Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, P. R. China

Received:2005-09-08 Online:2006-08-24 Published:2011-08-06
Supported by:
Supported by the Jilin Distinguished Young Scholars' Program(No.20020118) and the National Key Laboratory of Superhard Materials, Jilin University(No. 2002006).

Abstract

Abstract: Fe₂O₃/Al₂O₃ nanocomposites prepared by using the sol-gel technique were reduced in H₂ atmosphere at different temperatures, and the corresponding Fe/Al₂O₃ nanocomposites were obtained after the reduction of Fe₂O₃/Al₂O₃ nanocomposites at 1173 K. The structures and properties of the specimens were studied by X-ray diffraction(XRD), M(o)ssbauer 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.

Key words: Fe/Al₂O₃, Mö, ssbauer spectrum, Structure, Magnetism

LI Hai-bo, LIU Mei, LU Yang, XU Ying, YU Wen-xue. Preparation and Characterization of Fe/Al₂O₃ Nanocomposites[J]. Chemical Research in Chinese Universities, 2006, 22(4): 432-434.

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Preparation and Characterization of Fe/Al₂O₃ Nanocomposites

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