A New Hard Magnetic Phase in Binary Nd-Fe and Pr-Fe Alloys
A new magnetic phase has been observed in as-cast and melt-spun Nd-Fe and Pr-Fe alloys with a Curie temperature around 265°C. SEM studies show the presence of this phase in the form of spherical and elongated particles 5 μ m in size with a composition having a ratio of Fe/Nd=4:1. This phase is believed to be a ternary Nd-Fe-O phase stabilized with oxygen. The phase appears to have a high anisotropy leading to coercivities of about 6 kOe in as-cast samples at room temperature. The Mössbauer spectra of this phase can be fitted to four Fe sites with magnetic moments ranging from 1.7 to 2.54μB. © 1989.
G. C. Hadjipanayis et al., "A New Hard Magnetic Phase in Binary Nd-Fe and Pr-Fe Alloys," Journal of Magnetism and Magnetic Materials, Elsevier, Jan 1989.
The definitive version is available at http://dx.doi.org/10.1016/0304-8853(89)90077-2
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© 1989 Elsevier, All rights reserved.