journal article·2026-08

Simultaneously enhancing the coercivity and service properties of sintered Nd-Fe-B magnets via grain boundary diffusion of Al2O3 and Pr-Tb-Al alloy

Mingpeng Kou, Zuchun Wei, Hongya Yu, Chaochao Zeng, Shiying Chen, Zhongwu Liu

Publisher page

Abstract

No abstract is available for this record. The assistant can identify its topic from the title, but cannot infer the study’s results.

Source: Not provided · Quality: missing

Research context

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

References (37)

Show source-provided references
1. Overcoming refractory REFe2 phase bottleneck in high-Ce Nd-Ce-Fe-B magnets via praseodymium-induced phase transformation: enabling liquid-phase grain boundary diffusion of dysprosium
2. Understanding the role of element grain boundary diffusion mechanism in Nd-Fe-B magnets
3. Microstructural insights into the huge coercivity enhancement after post sinter annealing with the evolution of added Nd2O3 oxide in sintered Nd-Fe-B magnets10.1016/j.scriptamat.2025.117079 ↗
4. Progress on grain boundary diffused Nd-Fe-B magnets: developing cost effective diffusion sources and improving service performance10.1016/j.jallcom.2025.185724 ↗
5. Magnetization and magnetic anisotropy of R2Fe14B measured on single crystal10.1063/1.336611 ↗
6. R2Fe14 B materials: Intrinsic properties and technological aspects10.1103/RevModPhys.63.819 ↗
7. High efficiency selected area grain boundary diffusion of Nd-Fe-B magnets10.1016/j.jmst.2025.02.074 ↗
8. Different behaviors of binary rare earth-Al alloys for grain boundary diffusion of La and Ce-containing multi-main-phase magnets
9. Temperature-dependent microstructure and magnetic properties evolution in the sintered Nd-Fe-B magnets with Pr-Al-Cu diffusion10.1016/j.jallcom.2022.166725 ↗
10. Enhancing the grain boundary diffusion efficiency of Tb for Nd-Fe-B magnets using multi-element composite diffusion source10.1016/j.jallcom.2024.174003 ↗
11. Distribution of Dy in high-coercivity (Nd,Dy)-Fe-B sintered magnet10.1016/j.actamat.2011.01.046 ↗
12. Coercivity and thermal stability enhancement of Nd-Fe-B magnet by grain boundary diffusing Tb-Y-La-Cu alloys10.1016/j.jallcom.2023.169296 ↗
13. Combining grain boundary diffusion and segmentation: a novel production route for resource-efficient Nd-Fe-B magnets10.1016/j.scriptamat.2025.117164 ↗
14. Magnetic performances and diffusion shell-structures of Nd-Fe-B sintered magnets treated with grain boundary diffusion by low Dy-content multi-component alloys10.1016/j.jallcom.2025.178487 ↗
15. Tuning the distribution of Tb in Nd-Fe-B sintered magnet to overcome the magnetic properties trade-off10.1016/j.scriptamat.2022.114789 ↗
16. Coercivity enhancement of the sintered Nd-Ce-Fe-B magnet via grain boundary diffusion with Tb70Fe30 alloy10.1016/j.jmmm.2022.169034 ↗
17. Optimizing Ce-doped Nd-Fe-B magnets for high-efficient grain boundary diffusion of Tb-Fe alloy10.1016/j.materresbull.2025.113302 ↗
18. Effective microstructure optimization and coercivity enhancement of sintered Nd-Fe-B magnet by grain boundary diffusion of Pr60Tb13Al27 alloy10.1016/j.jallcom.2021.159375 ↗
19. Boundary structure modification and magnetic properties enhancement of Nd-Fe-B sintered magnets by diffusing (PrDy)-Cu alloy10.1016/j.scriptamat.2016.02.019 ↗
20. Optimization of TbAl grain boundary diffusion sources for sintered Nd-Fe-B magnets by low cost Nd substitution for Tb10.1039/D4TC03181D ↗
21. Prospect of developing Nd-Fe-B-type magnet with high electrical resistivity10.1007/s12598-019-01336-w ↗
22. Simultaneous enhancement of coercivity and electric resistivity of Nd-Fe-B magnets by Pr-Tb-Al-Cu synergistic grain boundary diffusion toward high-temperature motor rotors10.1016/j.jmst.2023.03.001 ↗
23. Improvement in magnetic properties, corrosion resistance and microstructure of Nd-Fe-B sintered magnets through intergranular addition of Tb68Ni3210.1016/j.jre.2021.03.007 ↗
24. A comparative study on the corrosion behavior of NdFeB magnets in different electrolyte solutions10.1002/maco.200804175 ↗
25. Towards peculiar corrosion behavior of multi-main-phase Nd-Ce-Y-Fe-B permanent material with heterogeneous microstructure10.1016/j.corsci.2020.108972 ↗
26. Effect of CaF2 addition on the microstructure and magnetic and electrical properties of sintered Nd-Fe-B Magnets
27. Enhanced electric resistivity of die-upset magnets by segmented NdF3 addition10.1109/TMAG.2014.2331763 ↗
28. Study on preparation and properties of CeO2/epoxy resin composite coating on sintered NdFeB magnet10.1016/j.jre.2017.11.012 ↗
29. Critical role of the main phase in enhancing the corrosion resistance for sintered Nd-Fe-B magnets10.1016/j.corsci.2025.113493 ↗
30. Clarifying the dominated coercivity enhancement mechanism of grain boundary diffused Nd-Fe-B magnets by Pr-based alloys10.1016/j.jmmm.2023.171593 ↗
31. Coercivity and thermal stability enhancement of NdFeB magnet by grain boundary diffusion Tb80Al20 alloys10.1016/j.intermet.2021.107335 ↗
32. Enhancing the Tb utilization efficiency and coercivity in high Ce content Nd-Fe-B magnets by Pr-Tb-Zn grain boundary diffusion10.1016/j.jmmm.2025.173316 ↗
33. Dysprosium nitride-modified sintered Nd-Fe-B magnets with increased coercivity and resistivity10.1143/JJAP.49.093001 ↗
34. Enhancing the temperature and chemical stability of sintered Nd-Fe-B magnets by Al and Ni assisted Tb grain boundary diffusion10.1016/j.jallcom.2025.178656 ↗
35. Alloying Pr-Tb-Cu diffusion source with Ni for enhancing both coercivity and corrosion resistance of Nd-Fe-B magnets10.1016/j.jallcom.2022.165049 ↗
36. Dy-based dual-alloy grain boundary diffusion for sintered Nd-Fe-B magnets with improved magnetic performance and corrosion resistance10.1016/j.matchar.2022.112319 ↗
37. Boosting efficiency and oxidation resistance of Pr-Tb-Cu diffusion source for Nd-Fe-B magnets by synergistic modification of Al or Ni10.1016/j.corsci.2024.112300 ↗