Rare earth-iron-boron permanent magnets.

摘要

Permanent magnets are prepared by a method comprising mixing a particulate rare earth-iron-boron alloy with a particulate rare earth oxide, aligning the magnetic domains of the mixture, compacting the aligned mixture to form a shape, and sintering the compacted shape. Coercivity of the resulting magnets is higher than that obtained without addition of rare earth oxide to the alloy.