Sintered NdFeB Magnets as Anisotropic Bonded Magnets via Hydrogen Decrepitation Process
Sintered NdFeB Magnets as Anisotropic Bonded Magnets via Hydrogen Decrepitation Process Abstract The scrap sintered Nd–Fe–B magnets were recycled as the raw materials for bonded magnets using the hydrogen decrepitation (HD) process. The HD powders have the lowest oxygen and hydrogen content by hydro-genation at 150°C with 1 bar H2 pressure and dehydro-genation at 600°C. [...]