Nanocompositional Electron Microscopic Analysis and Role of Grain Boundary Phase of Isotropically Oriented Nd-Fe-B Magnets
(a) Morphological map of the four identified granular phases obtained from TEM analysis. (b) HAADF image ( mm). (c–e) elemental (Fe, Nb, and Nd) EDX maps of sample area as shown in (b). Nd2Fe14B (grey), α-Fe (red), Nb6Fe76B18 (blue), and Fe2Nb (yellow).