Title :
Annealing-induced property improvements in 2-14-1 powders produced by inert gas atomization
Author :
Lewis, L.H. ; Sellers, C.H. ; Panchanathan, V.
Author_Institution :
Dept. of Appl. Sci., Brookhaven Nat. Lab., Upton, NY, USA
fDate :
9/1/1996 12:00:00 AM
Abstract :
The effects of vacuum annealing on the phase constitution and magnetic properties of various size fractions of 3 alloy compositions produced by inert-gas atomization (IGA) are examined. Annealing results in the oxidation of properitectic α-Fe formed during cooling of the melt, producing considerable improvement in the hard magnetic properties of the powders largely via the removal of lower-anisotropy magnetic reversal regions
Keywords :
annealing; boron alloys; crystal structure; ferromagnetic materials; iron alloys; permanent magnets; phase diagrams; rare earth alloys; α-Fe; 2-14-1 powders; RE2Fe14B; annealing-induced property improvements; hard magnetic properties; inert gas atomization; lower-anisotropy magnetic reversal regions removal; magnetic properties; phase constitution; size fractions; vacuum annealing; Annealing; Coercive force; Cooling; Laboratories; Magnetic materials; Magnetic properties; Magnets; Powders; Remanence; Temperature;
Journal_Title :
Magnetics, IEEE Transactions on
