Past, present, and future of soft magnetic composites

EA Perigo, B Weidenfeller, P Kollár… - Applied Physics Reviews, 2018 - pubs.aip.org
Power saving has been a central driving force for the development of new materials. In this
framework, soft magnetic composites appear as a feasible concept to be applied in strategic …

[HTML][HTML] Significant progress of grain boundary diffusion process for cost-effective rare earth permanent magnets: A review

Z Liu, J He, RV Ramanujan - Materials & Design, 2021 - Elsevier
Rare earth permanent magnets are essential in a plethora of electrical machine and
renewable energy. Nd-Fe-B magnets account for half of the market share of permanent …

Development of non-rare earth grain boundary modification techniques for Nd-Fe-B permanent magnets

Z Liu, J He, Q Zhou, Y Huang, Q Jiang - Journal of Materials Science & …, 2022 - Elsevier
The magnetic performance of Nd-Fe-B magnets depends on their grain boundary structure.
Intergranular addition and grain boundary diffusion (GBD) process are effective approaches …

Microstructure and temperature dependent of coercivity of hot-deformed Nd–Fe–B magnets diffusion processed with Pr–Cu alloy

H Sepehri-Amin, L Liu, T Ohkubo, M Yano, T Shoji… - Acta Materialia, 2015 - Elsevier
The coercivity of hot-deformed Nd–Fe–B magnet was substantially enhanced from 1.0 T to
2.6 T by the grain boundary diffusion process using Pr–Cu alloy. However, the temperature …

Micromagnetics of rare-earth efficient permanent magnets

J Fischbacher, A Kovacs, M Gusenbauer… - Journal of Physics D …, 2018 - iopscience.iop.org
The development of permanent magnets containing less or no rare-earth elements is linked
to profound knowledge of the coercivity mechanism. Prerequisites for a promising …

Coercivity limits in Nd-Fe-B hot-deformed magnets with ultrafine microstructure

N Kulesh, A Bolyachkin, E Dengina, X Tang, T Ohkubo… - Acta Materialia, 2024 - Elsevier
In this work, we developed a series of anisotropic hot-deformed Nd-Fe-B magnets with
ultrafine grain sizes varying from 125 nm to 234 nm in the lateral direction. Although grain …

Microstructure of core-shell NdY-Fe-B sintered magnets with a high coercivity and excellent thermal stability

G Ding, S Liao, J Di, B Zheng, S Guo, R Chen, A Yan - Acta Materialia, 2020 - Elsevier
Abstract We developed the NdY-Fe-B sintered magnet by effective microstructure
modification, which exhibits an excellent thermal stability of coercivity with 15 at.% Nd …

Physics-informed machine learning combining experiment and simulation for the design of neodymium-iron-boron permanent magnets with reduced critical-elements …

A Kovacs, J Fischbacher, H Oezelt, A Kornell… - Frontiers in …, 2023 - frontiersin.org
Rare-earth elements like neodymium, terbium and dysprosium are crucial to the
performance of permanent magnets used in various green-energy technologies like hybrid …

[HTML][HTML] Tailoring structural and magnetic properties: Cd²⁺ and Cu²⁺ co-doped Ni-Zn ferrite nanoparticles via sol-gel auto-combustion

D Parajuli, N Murali - South African Journal of Chemical Engineering, 2024 - Elsevier
In this research work, we have incorporated paramagnetic Cu 2+ and diamagnetic Cd 2+
cations in spinel ferrites. By adjusting the concentrations of Cu 2+ and Cd 2+, it is possible to …

A combined-pole permanent magnet synchronous motor incorporating nanocomposite magnets

W Xu, J Xu, W Zhang, J Wang - Journal of Magnetism and Magnetic …, 2023 - Elsevier
The development of rare earth permanent magnet materials has made outstanding
contributions to the advancement of high performance permanent magnet synchronous …