Journal
INTERMETALLICS
Volume 19, Issue 4, Pages 589-595Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.intermet.2010.12.012
Keywords
Magnetic intermetallics; Rare-earth intermetallics; Magnetic properties; Mechanical alloying and milling; Magnetic applications
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Funding
- Greek Secretariat for Research and Technology [03ED667]
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The aim of this work was the fabrication of Nd2Fe14B nanoparticles, through a top-down technique like surfactant-assisted high-energy ball-milling, and the monitoring of the milling-process stages with respect to the structure and magnetism. The ball-milling of a 40 mu m powder under Ar atmosphere, in an organic solution of oleic acid/oleylamine, resulted in 15 nm isolated nanoparticles after 20 h, presenting improved magnetocrystalline anisotropy compared to the initial material. By extending the mechanical process up to 100 ha gradual formation of elongated nanoparticles followed by structural amorphization was observed. (C) 2010 Elsevier Ltd. All rights reserved.
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