Nanocrystalline and textured NdFeB magnets were prepared from isotropic melt-spun Nd12Dy2Fe73.2Co6.6Ga0.6B5.6 powder by a modified hot-working process using direct joule heating. The isotropic magnet obtained by current applied (CA) press was composed of randomly oriented Nd2Fe14B grains of 50–100 nm in diameter, and the optimized magnetic properties were Br=0.81 T (8.1 kG), Hci=2022 kA/m (25.4 kOe), and (BH)max=117 kJ/m3 (14.7 MG Oe). After CA deformation, the grains grew to platelets with 50–100 nm in thickness and 200–400 nm in length, and the magnet showed excellent properties of Br=1.31 T (13.1 kG), Hci=1457 kA/m (18.3 kOe), and (BH)max=333 kJ/m3 (41.8 MG Oe).
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.