Current progress and future challenges in rare-earth-free permanent magnets

J Cui, M Kramer, L Zhou, F Liu, A Gabay… - Acta Materialia, 2018 - Elsevier
Permanent magnets (PM) are critical components for electric motors and power generators.
Key properties of permanent magnets, especially coercivity and remanent magnetization …

Energy efficient design and implementation of electric machines in air transport propulsion system

Z Song, C Liu - Applied Energy, 2022 - Elsevier
Following the global trend of carbon neutrality, green sustainable air transport becomes a
hot topic in relevant area of applied energy. Electrified air transport propulsion system …

Perspectives for high-performance permanent magnets: applications, coercivity, and new materials

S Hirosawa, M Nishino… - Advances in Natural …, 2017 - iopscience.iop.org
High-performance permanent magnets are indispensable in the production of high-
efficiency motors and generators and ultimately for sustaining the green earth. The central …

Rare-earth-free permanent magnets: the past and future

J Mohapatra, JP Liu - Handbook of magnetic materials, 2018 - Elsevier
Permanent magnets are essential components in everyday technologies, including in
energy conversion and transportation. Since the discovery of rare-earth-based permanent …

Manganese-based permanent magnet materials

T Keller, I Baker - Progress in Materials Science, 2022 - Elsevier
Manganese-based permanent magnetic materials have become an area of significant
research activity in recent years as a potential alternative to permanent magnets based on …

Rare-earth-free high energy product manganese-based magnetic materials

K Patel, J Zhang, S Ren - Nanoscale, 2018 - pubs.rsc.org
The constant drive to replace rare-earth metal magnets has initiated great interest in an
alternative. Manganese (Mn) has emerged to be a potential candidate as a key element in …

New anisotropic MnBi permanent magnets by field-annealing of compacted melt-spun alloys modified with Mg and Sb

AM Gabay, GC Hadjipanayis, J Cui - Journal of Magnetism and Magnetic …, 2020 - Elsevier
A method has been developed for manufacturing rare-earth-free MnBi-based magnets
capable of filling the existing “gap” between the ferrite and rare-earth permanent magnets …

Magnetic properties of large-scaled MnBi bulk magnets

S Kim, H Moon, H Jung, SM Kim, HS Lee… - Journal of Alloys and …, 2017 - Elsevier
We investigated the magnetic properties of large, compacted, sintered MnBi bulk magnets
with dimensions of 20.3× 15.3× 10.3 mm 3. To obtain a high content of the low-temperature …

Engineering microstructure to improve coercivity of bulk MnBi magnet

W Tang, G Ouyang, X Liu, J Wang, B Cui… - Journal of Magnetism and …, 2022 - Elsevier
MnBi is a candidate material for high-temperature magnets because of its increasing
coercivity with increasing temperatures up to 255° C. However, most efforts in fabricating …

Multistep severe plastic deformation to achieve non-rare earth bulk magnets with high α-MnBi phase content

L Weissitsch, S Wurster, H Krenn… - Materials Research …, 2024 - Taylor & Francis
The ferromagnetic α-MnBi phase as non-rare earth magnetic material has gained increasing
interest, but the fabrication of large volumes containing a significant amount of α-MnBi is still …