fig1
From: Impact of intergranular phase variations on the anomalous Nernst effect in Nd-Fe-B permanent magnets
Figure 1. (A) Magnetization curves of HP and HD magnets, showing the transition from isotropic to anisotropic magnetic properties; (B) Magnetization curves of HD magnets after Dy-Nd-Cu, Nd-Cu, and Pr-Cu GBDP, illustrating retained anisotropy with varying coercivity enhancements. HP: Hot-pressed; HD: hot-deformed; GBDP: grain boundary diffusion process.