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Synthesis and characterization of Fe-B nanoparticles for potential magnetic applications

AuthorsGaliana, Beatriz ; Oprea, Bodgan; Huttel, Yves ; Ballesteros Pérez, Carmen Inés
Issue Date2014
CitationJournal of Materials Science: Materials in Electronics 25(2): 659-663 (2014)
AbstractThe crystallization and structure of Fe-B nanoparticles (NPs) of different sizes formed in a single process by gas aggregation from Fe80B 20 targets were analyzed by transmission electron microscopy. It is concluded that all NPs are covered by an amorphous Fe-B shell while the crystal structure of the NPs core depends on their size. Large NPs with diameters ≥30 nm are monocrystalline tetragonal Fe3B, small diameter NPs (≤20 nm) are completely amorphous whereas in middle size NPs, with diameters between 20 and 30 nm, difference Fe-B phases (tetragonal Fe3B and orthorhombic FeB) together with defaulted areas are observed. This work opens new possibilities to produce Fe-B NPs tailoring their magnetic properties by controlling their size and composition. © 2013 Springer Science+Business Media New York.
Identifiersdoi: 10.1007/s10854-013-1627-y
issn: 0957-4522
e-issn: 1573-482X
Appears in Collections:(ICMM) Artículos
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