X-ray diffraction and Mössbauer studies of mechanically alloyed Fe–Ni nanostructured powders

Fe–10 wt% Ni and Fe–20 wt% Ni nanostructured alloys were prepared using a planetary ball mill P 4 vario mill from Fritsch. The Fe (Ni) BCC solid solution was identified by X-ray diffraction, allowing also to follow the size and shape of crystalline grains. The higher the shock power, the smaller the...

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Bibliographic Details
Published in:Journal of magnetism and magnetic materials 2005-07, Vol.294 (2), p.e145-e149
Main Authors: Hamzaoui, R., Elkedim, O., Grenèche, J.M., Gaffet, E.
Format: Article
Language:English
Subjects:
Chemical Sciences
Condensed Matter
Fe–Ni alloy
Magnetic properties
Material chemistry
Materials Science
Mössbauer spectroscopy
Nanocrystalline
Physics
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Summary:Fe–10 wt% Ni and Fe–20 wt% Ni nanostructured alloys were prepared using a planetary ball mill P 4 vario mill from Fritsch. The Fe (Ni) BCC solid solution was identified by X-ray diffraction, allowing also to follow the size and shape of crystalline grains. The higher the shock power, the smaller the grain size. The Mössbauer spectra of the nanostructured powders recorded at 77 and 300 K differ according to the shock power and the friction energy component while the hyperfine structure gives relevant information on the local structure environment of Fe atoms in relation with the milling mode process (shock or friction mode).
ISSN:0304-8853
1873-4766
DOI:10.1016/j.jmmm.2005.03.072