Back to results
US 11,920,224 B2Granted
Additive manufacture of anisotropic rare earth magnets
AssigneeFord Global Technologies, LLC
InventorsWanfeng Li, Feng Liang, Michael W. Degner
Life of this patent
Estimating the term…
Abstract
A magnet structure includes columnar grains of rare earth permanent magnet phase aligned in a same direction and arranged to form bulk anisotropic rare earth alloy magnet having a boundary defined by opposite ends of the columnar grains and lacking triple junction regions, and rare earth alloy diffused onto opposite ends of the bulk anisotropic rare earth alloy magnet.
Claims3
A magnet structure comprising:
- columnar grains of rare earth permanent magnet phase aligned in a same direction and arranged to form a bulk anisotropic rare earth alloy magnet (i) having an outer surface boundary defined by opposite ends of the columnar grains and (ii) completely lacking triple junction regions;
- and
- rare earth alloy diffused onto the outer surface boundary.
Dependencies are inferred from the claim text.