Hard magnetic properties of melt-spun nanocomposite Y16Fe78B6 ribbons

Melt-spun Y 16 Fe 78 B 6 ribbons were prepared by the melt-spinning technique with pure elements Y, Fe and Fe–B alloy in argon. The ribbons are mainly composed of Y 2 Fe 14 B, YFe 2 and α-Fe phases. Amorphous phase appears at the wheel velocity of >35 m·s −1 . For the ribbons prepared at optimum...

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Bibliographic Details
Published in:Rare metals 2023-02, Vol.42 (2), p.602-605
Main Authors: Sun, Liang, Li, Kuo-She, Li, Hong-Wei, Yu, Dun-Bo, Luo, Yang, Jin, Jin-Ling, Lu, Shuo, Quan, Ning-Tao
Format: Article
Language:English
Subjects:
Alpha iron
Annealing
Argon
Biomaterials
Chemistry and Materials Science
Coercivity
Domain walls
Energy
Heat treatment
Magnetic properties
Materials Engineering
Materials Science
Melt spinning
Metallic Materials
Nanocomposites
Nanoscale Science and Technology
Physical Chemistry
Remanence
Ribbons
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Summary:Melt-spun Y 16 Fe 78 B 6 ribbons were prepared by the melt-spinning technique with pure elements Y, Fe and Fe–B alloy in argon. The ribbons are mainly composed of Y 2 Fe 14 B, YFe 2 and α-Fe phases. Amorphous phase appears at the wheel velocity of >35 m·s −1 . For the ribbons prepared at optimum wheel velocity and heat treatments, the coercivity, remanence and maximum energy product are 239.5 kA·m −1 , 0.61 T and 32.7 kJ·m −3 , respectively. By an investigation of Henkel plots of ribbons, it is found that intergrain exchange coupling leads to the enhancement of remanence. The coercivity mechanism of ribbons prepared at 35 m·s −1 is mainly controlled by inhomogeneous pinning of domain walls. The phase component and magnetic properties change with annealing temperature and time. The optimum magnetic properties are obtained with the ribbon quenched at 35 m·s −1 and annealed at 700 °C for 10 min.
ISSN:1001-0521
1867-7185
DOI:10.1007/s12598-016-0750-3