Optimizing Tb diffusion behavior in Tb-Cu-Al grain boundary diffused Nd-Fe-B magnets by Y substitution

Key Points

• The central aim is to enhance the coercivity of Nd-Fe-B magnets by optimizing Tb diffusion through Y substitution.
• Utilized grain boundary diffusion technique to modify magnet properties.
• Applied Y substitution in Tb-Cu-Al grain boundaries of Nd-Fe-B magnets.
• Analyzed the effect on coercivity and diffusion behavior.
• Significant increase in coercivity observed with Y substitution compared to traditional methods.
• Enhanced Tb diffusion behavior positively correlates with higher magnet performance.