[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 …

[HTML][HTML] Nanocrystalline alternative rare earth-iron-boron permanent magnets without Nd, Pr, Tb and Dy: A review

J He, B Zhou, X Liao, Z Liu - Journal of Materials Research and Technology, 2024 - Elsevier
The continuous increase in the output of Nd-Fe-B permanent magnets leads to the
increasing consumption of rare earth (RE) metals of Nd, Pr, Tb and Dy. As a result, a serious …

Substantial coercivity enhancement in Dy-free Nd-Fe-B sintered magnet by Dy grain boundary diffusion

Z Wang, TT Sasaki, Y Une, T Ohkubo, K Hono - Acta Materialia, 2023 - Elsevier
To date, the highest coercivity reported for Dy-free Nd–Fe–B sintered magnets under the Dy
grain boundary diffusion (GBD) process is∼ 2.4 T. Therefore, exploring various approaches …

Rationally selecting the chemical composition of the Nd–Fe–B magnet for high-efficiency grain boundary diffusion of heavy rare earths

J He, Z Yu, J Cao, W Song, K Xu, W Fan… - Journal of Materials …, 2022 - pubs.rsc.org
Grain boundary diffusion (GBD) efficiency of heavy rare-earth (HRE) elements for Nd–Fe–B
magnets is closely related to the chemical composition of the initial magnets but this has not …

New grain boundary diffusion strategy of Nd-Fe-B sintered magnets to achieve breakthroughs in Tb-availability and thick limitation

Z Wang, Y Li, H Wu, M Ji, H Zhang, W Liu… - Journal of Alloys and …, 2023 - Elsevier
Grain boundary diffusion (GBD) Nd-Fe-B sintered magnets were prepared using a newly
developed solid-liquid phase separation diffusion (SepD) technique, as well as a currently …