Magnetic properties and interaction of nanocomposite Nd2Fe14B/PrCo5 melt-spun ribbons

doi:10.13251/j.issn.0254-6051.2025.01.006

Abstract

Abstract: The nanocomposite Nd₂Fe₁₄B/PrCo₅ melt-spun ribbons were prepared by induction melting and melt-spinning technique, and the effect of PrCo₅ addition on the phase structure, magnetic properties and exchange coupling was investigated. The XRD test results indicate that the ribbons has dual hard magnetic phases of Nd₂Fe₁₄B and PrCo₅, and no oxidation or formation of new phases occur during the preparation process. The content of PrCo₅ has an obvious effect on magnetic properties, and the appropriate addition of PrCo₅ can help improve coercivity. However, the remanent and maximum magnetic energy product decrease with the increase of PrCo₅ content. Research on the recoil loops shows that the "opening" phenomenon of the recoil loops is related to the content of PrCo₅, and the δ_M curve test shows that there is a strong exchange coupling effect in the Nd₂Fe₁₄B/PrCo₅ ribbons. Comprehensive analysis shows that optimal magnetic properties of the nanocomposite Nd₂Fe₁₄B/PrCo₅ ribbons can be obtained at 12%PrCo₅ content, with remanent M_r of 8.73 kGs, coercive H_cj of 11.03 kOe, and the maximum magnetic energy product (BH)_Max of 15.83 MGOe.

Key words: nanocomposite, Nd₂Fe₁₄B/PrCo₅ melt-spun ribbons, magnetic properties, exchange coupling

CLC Number:

TM273

Bo Yu, Zuo Jianhua, Wang Hao, Lu Wei. Magnetic properties and interaction of nanocomposite Nd₂Fe₁₄B/PrCo₅ melt-spun ribbons[J]. Heat Treatment of Metals, 2025, 50(1): 42-46.

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Magnetic properties and interaction of nanocomposite Nd₂Fe₁₄B/PrCo₅ melt-spun ribbons

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