Method of manufacturing a permanent magnet on the basis of NdFeB

Details Method of manufacturing a permanent magnet on the basis of NdFeB Method of manufacturing a permanent magnet on the basis of NdFeB

1993-08-11

2000-04-04

Jenkins, Daniel J.

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Powder shape or size characteristics

419 38, 419 32, 419 57, B22F 312

Patent

active

060457511

ABSTRACT:
A description is given of a method of manufacturing a permanent magnet on the basis of NdFeB. In this method a powder of NdFeB and a powder of a Ga alloy, consisting mainly of Ga and one or more than one rare earth metals (RE), is mixed to form a mixture which is subsequently aligned, compressed and sintered. Such alloys can be ground into homogeneous, fine-grain powders in a simple manner. The composition of the alloy preferably corresponds to the formula REGa.sub.x, where x=1 or x=2. Alloys which are very suitable contain Dy and/or Tb as the rare earth metal.

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