Microstructure and magnetic properties of NdFeB magnets: Comparative investigation of one-step and two-step grain boundary diffusion

doi:10.1016/j.jallcom.2025.184806

Microstructure and magnetic properties of NdFeB magnets: Comparative investigation of one-step and two-step grain boundary diffusion

2025-11-01

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DOI：10.1016/j.jallcom.2025.184806

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• Compared one-step diffusion, two-step grain boundary diffusion can further improve the coercivity. • The PrAlCuGa effectively suppressed surface Tb-rich grain formation and enhanced heavy rare earth alloy diffusion. • Two-step diffusion promotes the formation of antiferromagnetic RE6Fe13Ga phase.

Microstructure and magnetic properties of NdFeB magnets: Comparative investigation of one-step and two-step grain boundary diffusion

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