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Preparation and Characterization of Fe2O3/Al2O3 Nano-composites |
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| Authors: | LIU Mei YU Wen-xue LI Hai-bo XU Shi-chong ZHANG Xiao-fen |
| Affiliation: | 1. College of Physics,Jilin Normal University,Siping 136000,China 2. College of Materials Science and Engineering,Jilin University,Changchun 130023,China 3. College of Physics,Jilin Normal University,Siping 136000,China;State Key Laboratory of Superhard Materials,Jilin University,Changchun 130012,China |
| Abstract: | Al2O3/Fe2O3 nano-composites were prepared by sol-gel route. The effect of Fe2O3 content on the structure, grain size and characterization of the composite were investigated through X-ray diffraction and M(o)ssbauer spectrum. The X-ray diffraction results show that Al2O3/Fe2O3 nano-composites with the Fe2O3, content of 40 wt% can be obtained after heat-treated at 900℃. The M(o)ssbauer effect results show that all samples exhibit clear super-paramagnetic phenomenon. Particles grow and defects reduce with the increasing of Fe2O3 conteni and some α-Fe2O3 stay magnetic order. |
| Keywords: | nano-composites XRD Mssbauer effect |
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