Effects of Dy on magnetic properties of {alpha}-Fe/Nd{sub 2}Fe{sub 14}B type alloy

Journal Article · Wed Sep 01 00:00:00 EDT 1999 · IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers)

DOI:https://doi.org/10.1109/20.800510· OSTI ID:20000762

Kim, S G; Kim, M J; Ryu, K S; Kim, Y B; Kim, C S; Kim, T K

The effects of Dy content on magnetic and microstructural properties of melt-spun (Nd{sub 1{minus}x}Dy{sub x}){sub 4}(Fe{sub 0.9}Co{sub 0.1}){sub 86}B{sub 6}Nb{sub 3}Cu 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){sub 2}Fe{sub 14}B phases by grain coarsening.

• Research Organization: Korea Research Inst. of Standards and Science, Taejon (KR)
• OSTI ID: 20000762
• Journal Information: IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers), Journal Name: IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers) Journal Issue: 5Pt2 Vol. 35; ISSN IEMGAQ; ISSN 0018-9464
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BORON ALLOYS
COBALT ALLOYS
COERCIVE FORCE
COPPER ALLOYS
DYSPROSIUM ADDITIONS
IRON BASE ALLOYS
IRON-ALPHA
MAGNETIC PROPERTIES
METALLURGICAL EFFECTS
MICROSTRUCTURE
NEODYMIUM ALLOYS
NIOBIUM ALLOYS