(Nd,La,Ce)-Fe-B hot-deformed magnets for application of variable-magnetic-force motors

Tang, Xin; Sepehri-Amin, H.; Bolyachkin, A.; Ohkubo, T.; Hara, Kazuhiro

doi:10.1016/j.actamat.2022.117747

Acta Materialia

2022

DOI: 10.1016/j.actamat.2022.117747

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(Nd,La,Ce)-Fe-B hot-deformed magnets for application of variable-magnetic-force motors

Xin Tang

H. Sepehri-Amin

A. Bolyachkin

et al.

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Cited by 16 publications

(1 citation statement)

References 27 publications

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“…Because Praseodymium is chemically very similar to Nd, it is used to substitute it in Nd-Fe-B alloys to reduce costs. As it also does not lead to the formation of additional phases, in contrast to other light RE elements such as La [34][35][36], Ce [37][38][39], and Y, it can fully substitute Nd. The problem with a lower Curie temperature is counterbalanced with the addition of Co. A systematic investigation of the Pr-rich Pr-(Fe,Co)-B material system was carried out by Wu et al [40].…”

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confidence: 99%

The Future of Permanent-Magnet-Based Electric Motors: How Will Rare Earths Affect Electrification?

Podmiljšak,

Saje,

Jenuš

et al. 2024

Materials

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In this review article, we focus on the relationship between permanent magnets and the electric motor, as this relationship has not been covered in a review paper before. With the increasing focus on battery research, other parts of the electric system have been neglected. To make electrification a smooth transition, as has been promised by governing bodies, we need to understand and improve the electric motor and its main component, the magnet. Today’s review papers cover only the engineering perspective of the electric motor or the material-science perspective of the magnetic material, but not both together, which is a crucial part of understanding the needs of electric-motor design and the possibilities that a magnet can give them. We review the road that leads to today’s state-of-the-art in electric motors and magnet design and give possible future roads to tackle the obstacles ahead and reach the goals of a fully electric transportation system. With new technologies now available, like additive manufacturing and artificial intelligence, electric motor designers have not yet exploited the possibilities the new freedom of design brings. New out-of-the-box designs will have to emerge to realize the full potential of the new technology. We also focus on the rare-earth crisis and how future price fluctuations can be avoided. Recycling plays a huge role in this, and developing a self-sustained circular economy will be critical, but the road to it is still very steep, as ongoing projects show.

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The Future of Permanent-Magnet-Based Electric Motors: How Will Rare Earths Affect Electrification?

Podmiljšak,

Saje,

Jenuš

et al. 2024

Materials

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Enhancing coercivity and thermal stability of (Nd,Y)–Fe–B sintered magnets through lamellar structure design

Fan,

Li,

Cao

et al. 2024

Rare Met.

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A comparative study of Nd15Fe78B7 and Nd15Co78B7 systems: phase formations and coercivity mechanisms

Skokov

Schäfer

et al. 2022

Acta Materialia

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(Nd,La,Ce)-Fe-B hot-deformed magnets for application of variable-magnetic-force motors

Cited by 16 publications

References 27 publications

The Future of Permanent-Magnet-Based Electric Motors: How Will Rare Earths Affect Electrification?

The Future of Permanent-Magnet-Based Electric Motors: How Will Rare Earths Affect Electrification?

Enhancing coercivity and thermal stability of (Nd,Y)–Fe–B sintered magnets through lamellar structure design

A comparative study of Nd15Fe78B7 and Nd15Co78B7 systems: phase formations and coercivity mechanisms

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