Grain boundary restructuring and La/Ce/Y application in Nd–Fe

Grain boundary restructuring and La/Ce/Y application in Nd–Fe–B magnets

Yan Mi^†, Jin Jiaying, Ma Tianyu

Nyquist plots of (Pr, Nd)_14.5Fe_79.5B_6.0 and 12 wt.% (Pr, Nd)_32.5Fe_62.0Cu_5.5 restructured magnet in 0.005 M H₂SO₄ solution. The corresponding equivalent circuit is illustrated as an inset.