04881985 is referenced by 8 patents and cites 4 patents.

A method to produce rare earth (RE), iron, boron type anisotropic permanently magnetic material includes forming magnetically isotropic coarse powder particles of melt-spun alloy with a very fine grain RE.sub.2 FE.sub.14 B phase. The particles are mixed with inert particles of a size and of a weight percentage of the mixture to separate the powder particles for preventing hot work bonding therebetween. The mixture is hot pressed to cause the magnetically isotropic particles to be compressed in a direction parallel to the press direction so as to strain the particles to cause crystallites to be oriented along a crystallographically preferred magnetic axis resulting in particles of anisotropic permanently magnetic material.

Title
Method for producing anisotropic RE-FE-B type magnetically aligned material
Application Number
7/228435
Publication Number
4881985
Application Date
August 5, 1988
Publication Date
November 21, 1989
Inventor
John J Croat
Noblesville
IN, US
Robert W Lee
Troy
MI, US
Earl G Brewer
Warren
MI, US
Agent
George A Grove
Assignee
General Motors Corporation
MI, US
IPC
H01F 1/02
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