journal article·2025-12

Enhancing coercivity and thermal stability in high-remanence Nd-Fe-B magnets via TbF3 grain boundary diffusion

Shilin Li, Youhong Peng, Yaodong Wu, Yuqing Xing, Yu Zhang, Tao Liu, Sitian Cai, Qiong Wu, Ming Yue, Haifeng Du, Jin Tang

Acta Materialia· Volume 301
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Abstract

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OpenAlex topics: Magnetic Properties of Alloys · Magnetic properties of thin films · Superconducting Materials and Applications

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References (62)

Show source-provided references
1. New material for permanent magnets on a base of Nd and Fe (invited)10.1063/1.333572 ↗
2. Significant progress of grain boundary diffusion process for cost-effective rare earth permanent magnets: a review10.1016/j.matdes.2021.110004 ↗
3. Merits of Pr80Ga20 grain boundary diffusion process towards high coercivity‒remanence synergy of Nd‒La‒Ce‒Fe‒B sintered magnet10.1016/j.actamat.2022.117873 ↗
4. Design of novel quasi-trivalent dual-main-phase Ce magnets with high performance by manipulating the chemical state of Ce10.1016/j.actamat.2023.118703 ↗
5. Dependence of the crystal structure of the Nd-rich phase on oxygen content in an Nd–Fe–B sintered magnet10.1016/j.scriptamat.2008.03.004 ↗
6. Recent development of Nd–Fe–B sintered magnets and their applications10.1016/j.jmmm.2006.01.171 ↗
7. Strategy for high-coercivity Nd–Fe–B magnets10.1016/j.scriptamat.2012.06.038 ↗
8. R2Fe14B materials: intrinsic properties and technological aspects10.1103/RevModPhys.63.819 ↗
9. Simultaneous application of Dy–X (X= F or H) powder doping and dip-coating processes to Nd–Fe–B sintered magnets10.1016/j.actamat.2015.04.019 ↗
10. Super-high coercivity NdFeB magnet fabricated with double Tb-rich/lean shells by double alloy method and grain boundary diffusion10.1016/j.jallcom.2022.168368 ↗
11. Coercivity enhancements of Nd–Fe–B sintered magnets by diffusing DyHxalong different axes10.1088/0022-3727/48/21/215001 ↗
12. Study of sintered Nd-Fe-B magnet with high performance of Hcj (kOe) + (BH)max (MGOe) > 7510.1063/1.4803657 ↗
13. The grain-boundary diffusion process in Nd–Fe–B sintered magnets based on the electrophoretic deposition of DyF310.1016/j.intermet.2011.11.014 ↗
14. PrAl and PrDyAl diffusion into Nd-La-Ce-Fe-B sintered magnets: critical role of surface microstructure in the magnetic performance10.1016/j.apsusc.2020.147028 ↗
15. Magnetic properties of extremely small Nd-Fe-B sintered magnets10.1109/TMAG.2005.854874 ↗
16. Production of thick high-performance sintered neodymium magnets by grain boundary diffusion treatment with dysprosium–nickel–aluminum alloy10.1016/j.jmmm.2010.09.021 ↗
17. Grain boundary diffusion of different rare earth elements in Nd-Fe-B sintered magnets by experiment and FEM simulation10.1016/j.actamat.2016.11.034 ↗
18. Formation of anti-shell/core structure of heavy rare earth elements (Tb, Dy) in sintered Nd-Fe-B magnet after grain boundary diffusion process10.1016/j.scriptamat.2018.12.034 ↗
19. The mechanism of coercivity enhancement by the grain boundary diffusion process of Nd–Fe–B sintered magnets10.1016/j.actamat.2012.12.018 ↗
20. Improvement of coercivity and its thermal stability of hot-deformed Nd-Fe-B magnets processed by Tb70Cu30 doping and subsequent Nd85Cu15 diffusion10.1016/j.actamat.2021.117296 ↗
21. Coercivity enhancement by the grain boundary diffusion process to Nd–Fe–B sintered magnets10.1109/TMAG.2006.879906 ↗
22. Impact of TbF3 diffusion on coercivity and microstructure in sintered Nd–Fe–B magnets by electrophoretic deposition10.1016/j.scriptamat.2016.01.034 ↗
23. Utility and influence mechanism of densification modulation on grain boundary diffusion in NdFeB magnets10.1016/j.jre.2024.02.011 ↗
24. Progress on modification of microstructures and magnetic properties of Nd-Fe-B magnets by the grain boundary diffusion engineering10.1016/j.jmmm.2020.167278 ↗
25. Fig.sNd-Fe-B sintered magnet to overcome the magnetic properties trade-off10.1016/j.scriptamat.2022.114789 ↗
26. Interpretable prediction of remanence in sintered NdFeB through machine learning strategy10.1016/j.jallcom.2024.176727 ↗
27. The effect of pressure-assisted grain boundary diffusion on magnetic properties and microstructure of Nd-Fe-B magnet using TbF3 prepared by screen printing10.1016/j.jmmm.2024.171758 ↗
28. High-quality TbF3 coating prepared by suspension plasma spraying technique for improving the grain boundary diffusion efficiency of sintered Nd-Fe-B magnets10.1016/j.surfcoat.2023.129575 ↗
29. Effect of rare earth content on TbF3 diffusion in sintered Nd–Fe–B magnets by electrophoretic deposition10.1016/j.scriptamat.2016.12.036 ↗
30. New grain boundary diffusion strategy of Nd-Fe-B sintered magnets to achieve breakthroughs in Tb-availability and thick limitation10.1016/j.jallcom.2023.169174 ↗
31. Microstructure and coercivity of grain boundary diffusion processed Dy-free and Dy-containing NdFeB sintered magnets10.1016/j.actamat.2019.04.032 ↗
32. A new strategy for improving the Tb utilization efficiency in sintered NdFeB magnets through pressure-assisted grain boundary diffusion10.1016/j.jallcom.2023.172598 ↗
33. Normal and abnormal grain growth in fine-grained Nd-Fe-B sintered magnets prepared from He jet milled powders10.1016/j.jmmm.2016.10.139 ↗
34. Micromagnetic simulations of reversal magnetization in core ((Nd0.7, Ce0.3)2Fe14B)-shell (Nd2Fe14B) type10.7498/aps.69.20200435 ↗
35. Micromagnetic simulation for the effects of core-shell distributions of RE on the magnetic properties of dual-main-phase Nd-Fe-B based magnets10.1016/j.jmmm.2018.12.107 ↗
36. Structure and chemical compositions of the grain boundary phase in Nd-Fe-B sintered magnets10.1016/j.actamat.2016.05.035 ↗
37. Microstructure optimization to achieve high coercivity in anisotropic Nd–Fe–B thin films10.1016/j.actamat.2011.09.006 ↗
38. Relationship between controllable preparation and microstructure of NdFeB sintered magnets10.1016/S1002-0721(14)60118-6 ↗
39. Coercivity enhancement of sintered NdFeB magnets by powder Refinement, lubricant increment and Hydrogen-Containing sintering manufacturing10.1016/j.jmmm.2024.172281 ↗
40. Single-crystal and textured polycrystalline Nd2Fe14B flakes with a submicron or nanosize thickness10.1016/j.actamat.2011.11.062 ↗
41. Magnetic properties of R-Fe-B and R-Fe-Co-Al-B magnets (R=Pr and Nd)10.1063/1.342319 ↗
42. Grain boundary diffusion efficiency of sintered Nd-Fe-B magnets by Al, Sn and Zn addition10.1016/j.jallcom.2023.171676 ↗
43. Application of TbF3 Nano-powders by sand milling process in preparing high performance grain boundary diffusion Nd-Fe-B magnets
44. Effect of diffusing TbF3 powder on magnetic properties and microstructure transformation of sintered Nd-Fe-Cu-B magnets10.1016/j.jmmm.2017.07.071 ↗
45. High-coercivity Nd-Fe-B magnets obtained with the electrophoretic deposition of submicron TbF3 followed by the grain-boundary diffusion process10.1016/j.actamat.2016.06.003 ↗
46. Magnetic field stability of PrFeB magnets developed by GBD for cryogenic permanent magnet undulators10.1016/j.jre.2017.09.011 ↗
47. Investigation on the corrosion behavior and mechanical properties of Nd-Fe-B magnets diffused by electrophoretic deposited TbF310.1016/j.jallcom.2024.177875 ↗
48. Effect of MgCl2 on electrophoretic deposition of TbF3 powders on Nd-Fe-B sintered magnet10.1016/j.jre.2022.04.023 ↗
49. Effect of grain boundary diffusion in TbF3-Al mixed electrophoresis on properties of sintered Nd-Fe-B magnets10.1016/j.jmmm.2022.170324 ↗
50. Origin of the coercivity difference in sintered Nd-Fe-B magnets by grain boundary diffusion process using TbH3 nanoparticles and TbF3 microparticles
51. Magnetic properties and Tb diffusion of sintered Nd–Fe–B magnets by suspension plasma spraying10.1016/j.jmmm.2022.169497 ↗
52. Strengthening magnetic and corrosion performances of NdFeB magnets via grain boundary diffusion with Tb element10.1016/j.matchar.2025.114881 ↗
53. Diffusion behavior and coercivity enhancement of Tb-containing NdFeB magnet by dip-coating TbH310.1016/j.jmrt.2022.07.167 ↗
54. Strategy for co-enhancement of interface adhesion and coercivity of Nd-Fe-B grain boundary diffusion magnet: TbH3 nanopowders used in screen printing10.1016/j.jmmm.2024.172595 ↗
55. Synergistic regulation and optimization of microstructure, coercivity, and thermal stability in sintered NdFeB magnets through grain boundary diffusion of Dy and Al elements10.1016/j.jmrt.2024.12.235 ↗
56. Quantification of the existence ratio of non-adhesion grain boundaries and factors governing the strength of coke containing low-quality coal10.1299/jtst.7.351 ↗
57. Scaling analysis of current influence on Hastelloy surface roughness in electro-polishing process10.1007/s12598-018-1116-9 ↗
58. Analysis on coercivity enhancement mechanism of grain-boundary-diffused and Dual-alloyed Nd-Fe-B Magnets10.1016/j.jmrt.2024.01.245 ↗
59. A systematic study on crystal structure and magnetic properties of Ln3GaO6 (Ln=Nd, Sm, Eu, Gd, Tb, Dy, Ho and Er)10.1016/j.jssc.2003.12.024 ↗
60. Impact of different Nd-rich crystal-phases on the coercivity of Nd–Fe–B grain ensembles10.1016/j.scriptamat.2013.08.029 ↗
61. Dissolution of two types of grain boundary phases in a hot-deformed Nd-Fe-B magnet by high-temperature annealing10.1016/j.matchar.2019.02.041 ↗
62. Thermal activation in permanent magnets10.1007/s11837-015-1415-7 ↗