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 …

L10 FeNi: a promising material for next generation permanent magnets

S Mandal, M Debata, P Sengupta… - Critical Reviews in Solid …, 2023 - Taylor & Francis
Permanent magnets (PM) find widespread application in energy conversion,
telecommunication, data storage, sensors, electronic gadgets, etc. Even though the market …

Direct Formation of Hard‐Magnetic Tetrataenite in Bulk Alloy Castings

YP Ivanov, B Sarac, SV Ketov, J Eckert… - Advanced …, 2023 - Wiley Online Library
Currently, predominant high‐performance permanent magnets contain rare‐earth elements.
In the search for rare‐earth‐free alternates, body‐centered tetragonal Fe–Ni is notable. The …

rare-earth-free permanent magnets: The effects of twinning versus dislocations in Mn-Al magnets

Y Jia, Y Wu, S Zhao, S Zuo, KP Skokov, O Gutfleisch… - Physical Review …, 2020 - APS
Defects of various kinds strongly affect local magnetic anisotropy and thus play a crucial role
in coercivity in high-performance permanent magnets. In particular, in rare-earth-free …

[HTML][HTML] Revisiting Néel 60 years on: The magnetic anisotropy of L10 FeNi (tetrataenite)

CD Woodgate, CE Patrick, LH Lewis… - Journal of Applied …, 2023 - pubs.aip.org
The magnetocrystalline anisotropy energy of atomically ordered L1 0 FeNi (the meteoritic
mineral tetrataenite) is studied within a first-principles electronic structure framework. Two …

Roadmap towards optimal magnetic properties in L10-MnAl permanent magnets

Y Jia, Y Wu, Y Xu, R Zheng, S Zhao, KP Skokov… - Acta Materialia, 2023 - Elsevier
Twin boundaries impact negatively the magnetic properties in conventionally-fabricated L1 0-
type and RETM 12-type permanent magnets. Herein, we propose a strategy to suppress …

Artificially produced rare-earth free cosmic magnet

A Makino, P Sharma, K Sato, A Takeuchi, Y Zhang… - Scientific reports, 2015 - nature.com
Chemically ordered hard magnetic L10-FeNi phase of higher grade than cosmic meteorites
is produced artificially. Present alloy design shortens the formation time from hundreds of …

[HTML][HTML] Facile and fast synthesis of highly ordered L10-FeNi nanoparticles

G Varvaro, P Imperatori, S Laureti, D Peddis, F Locardi… - Scripta Materialia, 2024 - Elsevier
The chemically ordered L1 0-FeNi alloy is a promising candidate for next generation rare-
earth-free permanent magnets, which can revolutionize the high-performance magnets …

Historical overview and recent advances in permanent magnet materials

R Islam, K Vero, JP Borah - Materials Today Communications, 2024 - Elsevier
The twentieth century stands out as the pinnacle era for permanent magnets (PM),
witnessing a remarkable evolution in their capabilities. The evolution initiated with magnetic …

High and ultra-high coercive materials in spring-exchange systems—Review, simulations and perspective

A Chrobak - Materials, 2022 - mdpi.com
The paper refers to the spring-exchange magnetic systems containing magnetically soft and
hard phases. This work consists of two parts. The first part is a brief review of hard magnetic …