Grain boundary restructuring and La/Ce/Y application in Nd–Fe–B magnets |
(a) Back-scattered electron image of 12 wt.% (Pr, Nd)32.5Fe62.0Cu5.5 restructured magnet. EDS detection of intergranular phase at triple junction areas is shown as inset. (b) Corresponding STEM image and (c) EDS composition profile along the line shown in (b).[ |