Study of structural and magnetic properties of B-rich RE–Fe–B nanocomposite ribbons

• Published in: Physica. B, Condensed matter Vol. 354; no. 1; pp. 209 - 212
• Main Authors: Saccone, F.D., Sirkin, H.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Amsterdam Elsevier B.V 31-12-2004; Elsevier
• Subjects: B-rich Nd–Fe–B magnets; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Exact sciences and technology; Magnetic properties and materials; Magnetic properties of nanostructures; Metastable phases; Nanocomposite magnets; Physics; “Exchange-spring”magnets; B-rich Nd–Fe–B magnets; “Exchange-spring”magnets; Metastable phases; Nanocomposite magnets; Crystalline phase; Annealing; Ferromagnetic materials; Iron alloys; Boron Alloys; Amorphous state; B-rich Nd-Fe-B magnets; Precipitation; Nanocomposites; Spring exchange magnet; Exchange-springmagnets; Rare earths; Coercive force; Rare earth alloys; Magnetic properties
• ISSN: 0921-4526; 1873-2135
• DOI: 10.1016/j.physb.2004.09.049

In this work, a systematic study of the structural and magnetic properties of B-rich rare earth–Fe–B nanocomposite samples produced by annealing amorphous ribbons was carried out. The crystalline Fe
2B phases t-(Fe, RE)
3B and α-(Fe, RE) precipitated at temperatures above 550
°C. The coercive field was found to diminish dramatically, from 1.33 to 0.05
kOe, with the addition of small quantities of Misch-Metal.