Hard Magnetic, Low Neodymium Nd-Fe-B Melt-Spun Alloys Containing Refractory Metals

Journal Article · Thu Jun 30 00:00:00 EDT 2011 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3601796· OSTI ID:21608113

Leonowicz, Marcin; Spyra, Marzena; Jezierska, Elzbieta ^[1]

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1. Faculty of Materials Science and Engineering, Warsaw University of Technology, Woloska 14, 02-507 Warsaw (Poland)

The effect of selected refractory metals addition on the structure and magnetic properties was studied for the nanocomposite Nd{sub 9}Fe{sub 77-x}B{sub 14}M{sub x}(M = Ti, Mo, Nb, Mn), Nd{sub 8}Fe{sub 78-x}B{sub 14}M{sub x}(M = Ti, Mo, Nb, Mn) and Nd{sub 7}Fe{sub 79-x}B{sub 14}Ti{sub x} systems. It was found that the addition of 2 and 4 at % of refractory metals leads to a substantial increase of the coercivity and maximum energy product for each of the nanocomposite systems while maintaining the remanence unchanged. The highest properties were obtained for the alloys containing 4-5 at% of the refractory metals. The maximum energy product of 143 kJ/m{sup 3} was achieved for the Nd{sub 8}Fe{sub 74}B{sub 14}Ti{sub 4} alloy.

• OSTI ID: 21608113
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1347; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALLOYS
BORON
COERCIVE FORCE
COMPOSITE MATERIALS
ELEMENTS
INTERMETALLIC COMPOUNDS
IRON
MAGNETIC MATERIALS
MAGNETIC PROPERTIES
MANGANESE
MATERIALS
METALS
MOLYBDENUM
NANOSTRUCTURES
NEODYMIUM
NIOBIUM
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
RARE EARTHS
REFRACTORY METALS
SEMIMETALS
SOLIDIFICATION
TITANIUM
TRANSITION ELEMENTS