Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 564, Issue -, Pages 27-34Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2013.02.126
Keywords
Fe-C nanocomposites; Laser pyrolysis; Mossbauer spectroscopy and magnetometry
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Funding
- PCE IDEI [75/2011]
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New nanometric systems were produced by using specific parameters of the laser pyrolysis process. Relevant results related to the magnetic behavior of the samples were obtained via SQUID magnetometry and Mossbauer spectroscopy, the data being corroborated with those previously obtained from X-ray diffraction, transmission electron microscopy and energy dispersive X-ray spectroscopy. The formed nanocomposites contain iron carbides, iron oxides and metallic iron nanoparticles which relative content and average size depend strongly on experimental specific parameters of the pyrolysis process. The magnetic properties and the local interaction mechanisms were explained by adequate magnetic relaxation and static models. (C) 2013 Elsevier B.V. All rights reserved.
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