Structures and magnetic properties of (Ce,Sm)Co2Fe2B melt-spun ribbons

•As-rapidly quenched (Ce,Sm)Co2Fe2B specimens consisted of the amorphous phase.•The (Ce,Sm)Co2Fe2B-type phase was obtained by annealing of the amorphous specimens.•A high coercivity of 1.58 MA m−1 was achieved in the Ce0.25Sm0.75Co2Fe2B specimen. The structure and magnetic properties of the (Ce,Sm)C...

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Bibliographic Details
Published in:Journal of magnetism and magnetic materials 2020-11, Vol.513, p.167189, Article 167189
Main Authors: Saito, Tetsuji, Nishio-Hamane, Daisuke
Format: Article
Language:English
Subjects:
Annealing
Coercivity
Magnetic properties
Melt spinning
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Summary:•As-rapidly quenched (Ce,Sm)Co2Fe2B specimens consisted of the amorphous phase.•The (Ce,Sm)Co2Fe2B-type phase was obtained by annealing of the amorphous specimens.•A high coercivity of 1.58 MA m−1 was achieved in the Ce0.25Sm0.75Co2Fe2B specimen. The structure and magnetic properties of the (Ce,Sm)Co2Fe2B-type phase prepared by melt-spinning technique are presented. The structure of the Ce1-xSmxCo2Fe2B (x = 0–1) melt-spun ribbons was amorphous, whereas the annealed Ce1-xSmxCo2Fe2B (x = 0–0.25) specimens consisted of the (Ce,Sm)Co2Fe2B-type phase. Although the annealed Ce1-xSmxCo2Fe2B (x = 0–0.25) specimens did not show high coercivity, high coercivity was exhibited by the annealed Ce1-xSmxCo2Fe2B (x = 0.5–1.0) specimens. The annealed Ce0.25Sm0.75Co2Fe2B specimen with fine (Ce,Sm)Co2Fe2B-type grains showed a coercivity as high as 1.58 MAm−1.
ISSN:0304-8853
1873-4766
DOI:10.1016/j.jmmm.2020.167189