DocumentCode
1031102
Title
Magnetic properties and microstructure of (Nd,Dy)-(Fe,Co)-B system magnets
Author
Arai, S. ; Shibata, T. ; Koshizuka, N. ; Nagakura, M.
Author_Institution
Meiji University, Kawasaki, Japan
Volume
23
Issue
5
fYear
1987
fDate
9/1/1987 12:00:00 AM
Firstpage
2299
Lastpage
2301
Abstract
The magnetic properties of sintered (Nd,Dy)-(Fe,Co)-B system magnets were studied and compared with their microstructures. Both cobalt and dysprosium substitutions for Nd-Fe-B ternary alloy are effective for the increase of the Curie temperature. It is confirmed that the replacement of iron by cobalt in this system improves the temperature coefficient of coercivity. The microstructure studies show that the simultaneous substitution of cobalt and dysprosium produces cobalt-rich compounds in the grain boundary region. These c0balt-rich phases are supposed to contribute to the lower coercivity of this system
Keywords
Permanent magnets; Cobalt; Coercive force; Electrons; Image analysis; Iron; Magnetic properties; Magnetization; Magnets; Microstructure; Temperature dependence;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/TMAG.1987.1065656
Filename
1065656
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