Simultaneously improving coercivity and temperature coefficient of remanence of sintered Nd-Fe-B magnets through Co/(TbAl) grain boundary diffusion

Key Points

• The combination of Co and (TbAl) diffusion increases coercivity and remanence in Nd-Fe-B magnets, leading to better overall magnet performance.
• Results show a significant enhancement, with coercivity values exceeding 10 kOe and temperature coefficients of remanence improving substantially.
• Assessment using grain boundary diffusion methods demonstrates potential to optimize magnetic properties effectively and efficiently in sintered magnets.
• Highlights the promise of this diffusion approach for future applications in high-performance magnet technologies.