Permanent magnet having good thermal stability and method for ma

Details Permanent magnet having good thermal stability and method for ma Permanent magnet having good thermal stability and method for ma

1990-06-21

1991-08-20

Sheehan, John P.

Metal treatment

Stock

Magnetic

420 83, 420121, H01F 1053

Patent

active

050411721

ABSTRACT:
A thermally stable permanent magnet with reduced irreversible loss of flux and improved intrinsic coercivity iHc of 15 KOe or more having the following compositon:

REFERENCES:
patent: 4597938 (1986-07-01), Matsuura et al.
patent: 4767450 (1988-08-01), Ishigaki et al.
Narasimhan, "Comparative Study of NdFeB and `2:7` Rare Earth Magnets", Dayton, Ohio, May 1985, pp. 459-473.

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