Journal
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
Volume 301, Issue 2, Pages 287-291Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jmmm.2005.07.029
Keywords
Fe/Fe3O4; magnetic properties; nanocrystal; composite; ferrite
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Composites of alpha-Fe/FeA having dimensions in the range of 100-150 nm have been prepared by disproportion method. The structure and morphology are investigated by XRD and TEM. XRD shows that the metal has got the BCC structure. TEM shows balls of metallic iron about 100-nm-wide stuck to magnetite grains. Magnetic measurement shows that the sample aged for 3 h and calcined at 200 degrees C has the maximal saturation magnetization corresponding to the highest concentration of alpha-Fe in the final sample. (c) 2005 Elsevier B.V. All rights reserved.
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