DocumentCode
1049605
Title
Temperature dependence of coercivity for Co-Sm permanent magnet alloys
Author
Martin, D.L. ; Benz, M.G.
Author_Institution
General Electric Corporate Research Center, Schenectady, N.Y.
Volume
8
Issue
3
fYear
1972
fDate
9/1/1972 12:00:00 AM
Firstpage
562
Lastpage
563
Abstract
The demagnetization properties of a series of sintered Co-Sm magnets have been measured over the range 0 to 750 K. The intrinsic coercive force of the samples varied from 19 to 65 kOe at 27 K, but decreased with increasing temperature to zero at about 700 K. The change of relative coercivity, Hci (T)/Hci (77 K), with temperature was the same for all the samples. Thus, it appears that the factors which influence the magnitude of coercivity do not influence the temperature dependence.
Keywords
Cobalt-rare earth magnets; Coercive forces; Magnetic thermal effects; Rare earth-cobalt magnets; Coercive force; Demagnetization; Magnetic field measurement; Magnetic properties; Magnetization; Permanent magnets; Solenoids; Temperature dependence; Temperature distribution; Testing;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/TMAG.1972.1067357
Filename
1067357
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