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Grain boundary diffusion enhancement and double-shell evolution mechanism induced by Dy70Ni30 alloy in high-Cu, high-Ga Nd-Fe-B magnets
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DOI：10.1016/j.matchar.2026.116899.png)
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Abstract
En 中文
• Dy70Ni30 pre-addition enables deeper and highly efficient Tb grain-boundary diffusion. • Ni induces a stratified Dy/Tb double-shell structure in Nd-Fe-B magnets. • Ni/Ti synergy suppresses reversed domains and raises coercivity to 23.66 kOe.
Keywords:
Nd-Fe-B sintered magnet
Grain boundary diffusion
Double-shell structure
Ti-induced interfacial strain
Journal
IF:
5.5
Papers:
1.1W
Citations:
3.4W
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