DocumentCode
1259035
Title
Effects of Dy on magnetic properties of a-Fe/Nd2Fe14B type alloy
Author
Kim, S.G. ; Kim, M.J. ; Ryu, K.S. ; Kim, Y.B. ; Kim, C.S. ; Kim, T.K.
Author_Institution
Korea Res. Inst. of Stand. & Sci., Taejon, South Korea
Volume
35
Issue
5
fYear
1999
fDate
9/1/1999 12:00:00 AM
Firstpage
3316
Lastpage
3318
Abstract
The effects of Dy content on magnetic and microstructural properties of melt-spun (Nd1-xDyx)4(Fe0.9 Co0.1)86B6Nb3Cu alloys have been investigated. The energy product of the alloys decreases with the increase of Dy content, while the coercivity increases up to 2.64 kOe at x=0.3. At a fixed annealing time condition, the optimum annealing temperature increases by Dy substitution, and grain coarsening occurs in the alloys with high Dy content. The deterioration of hard magnetic properties by Dy substitution is due to the decrease of exchange interaction between a-Fe and (Nd,Dy)2Fe14B phases by grain coarsening
Keywords
amorphous magnetic materials; annealing; boron alloys; cobalt alloys; coercive force; copper alloys; dysprosium alloys; exchange interactions (electron); ferromagnetic materials; grain growth; iron; iron alloys; neodymium alloys; niobium alloys; permanent magnets; Dy content; Dy effects; Fe-(NdDy)4(FeCo)86B6Nb3 Cu; a-Fe/Nd2Fe14B type alloy; annealing; annealing temperature; coercivity; energy product; exchange interaction; grain coarsening; hard magnetic properties; magnetic properties; melt-spun (Nd1-xDyx)4(Fe0.9Co 0.1)86B6Nb3Cu alloys; microstructural properties; Annealing; Cobalt alloys; Coercive force; Copper alloys; Elementary particle exchange interactions; Iron; Magnetic properties; Neodymium; Niobium alloys; Temperature;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/20.800510
Filename
800510
Link To Document