Title :
Structure and magnetic properties of new Pr-Zr-Co-Fe precipitation hardened alloys
Author :
Gabay, Alexander M. ; Zhang, Yong ; Hadjipanayis, George C.
Author_Institution :
Dept. of Phys. & Astron., Delaware Univ., Newark, DE, USA
fDate :
9/1/2000 12:00:00 AM
Abstract :
Zr and Fe substitutions were systematically made in Pr-Co alloys in order to promote a precipitation-caused magnetic hardening with a resulting high coercivity. Microstructures similar to that of Sm(Co,Fe,Cu,Zr)z magnets can be formed in some Pr-Co-Fe-Zr alloys with 0-15 at.% Fe. However, with this Fe content the 2:17 phase does not have a uniaxial anisotropy. Aligned powders of the precipitation-hardened Pr-Zr-Co-Fe alloys with low Fe content show coercivity up to 4.1 kOe and energy product up to 10.9 MGOe
Keywords :
cobalt alloys; coercive force; ferromagnetic materials; iron alloys; magnetic anisotropy; permanent magnets; praseodymium alloys; precipitation hardening; zirconium alloys; Pr-Zr-Co-Fe; Pr-Zr-Co-Fe precipitation hardened alloys; aligned powders; energy product; high coercivity; magnetic properties; microstructures; precipitation-caused magnetic hardening; structure; uniaxial anisotropy; Anisotropic magnetoresistance; Coercive force; Iron alloys; Magnetic anisotropy; Magnetic properties; Magnets; Microstructure; Perpendicular magnetic anisotropy; Powders; Zirconium;
Journal_Title :
Magnetics, IEEE Transactions on
