Title :
Magnetic properties of Nd2Fe17-xGax compounds
Author :
Al-Omari, I.A. ; Sellmyer, D.J.
Author_Institution :
Dept. of Appl. Phys. Sci., Jordan Univ. of Sci. & Technol., Irbid, Jordan
fDate :
9/1/1997 12:00:00 AM
Abstract :
Nd2Fe17-xGax compounds with x=0, 1, 2, 3 and 4 have been fabricated by arc-melting, and annealed for different times. The structure and magnetic properties for these compounds were studied. X-ray diffraction measurements show that these compounds have the rhombohedral Th2Zn17 structure and are single phase except for Nd2Fe13Ga4 which contains some α-Fe and another unknown phase. Lattice parameters and unit cell volume are found to increase with increasing Ga concentration. Structural and magnetic measurements on magnetically aligned powder samples show that all the samples studied have an easy-plane anisotropy
Keywords :
X-ray diffraction; annealing; ferromagnetic materials; gallium alloys; iron alloys; lattice constants; magnetic anisotropy; magnetisation; neodymium alloys; permanent magnets; Nd2Fe13Ga4; Nd2Fe14Ga3; Nd2Fe15Ga2; Nd2Fe16Ga; Nd2Fe17-xGax compounds; Nd2Fe17; X-ray diffraction; annealing time; arc-melting; easy-plane anisotropy; lattice parameters; magnetic properties; magnetically aligned powder samples; magnetization; rhombohedral Th2Zn17 structure; single phase; structural properties; unit cell volume; Annealing; Iron; Lattices; Magnetic anisotropy; Magnetic properties; Magnetic variables measurement; Neodymium; Phase measurement; X-ray diffraction; Zinc;
Journal_Title :
Magnetics, IEEE Transactions on
