The effect of boron on the structure and magnetic properties of Pr0.15Tb0.3Dy0.55Fe1.85 alloy

• Published in: Journal of magnetism and magnetic materials Vol. 296; no. 2; pp. 114 - 117
• Main Authors: LIU, H. Y, LI, Y. X, XU, X. W, CHEN, G. F, ZHAO, S. W, QU, J. P, CHEN, J. L, WU, G. H
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier Science 2006
• Subjects: Condensed matter: electronic structure, electrical, magnetic, and optical properties; Exact sciences and technology; Magnetic properties and materials; Magnetomechanical and magnetoelectric effects, magnetostriction; Physics; Cubic lattices; Resistance strain gages; Curie point; Intermetallic compounds; Magnetostriction; Pr0.15Tb0.3Dy0.55Fe1.85-xBx; XRD; Lattice parameters; Magnetic susceptibility; 75.80.+q Magnetostriction; Laves phase; Chemical composition; Laves phases; Magnetic properties
• ISSN: 0304-8853
• DOI: 10.1016/j.jmmm.2005.02.003

The rare earth iron compounds have attracted much attention because of their giant magnetostriction at room temperature. The structure, Curie temperature and magnetostriction of Pr0.15Tb0.3Dy0.55Fe1.85-xBx (x = 0-0.3) alloys have been investigated using X-ray diffraction, AC susceptibility and standard strain gauge techniques. It was found that all the samples possess entirely MgCu2-type cubic Laves structure. With increasing B concentration, the lattice parameter decreases, while the Curie temperature remains unchanged. The magnetostriction of Pro. I5Tbo.3Dyo.55Fe1.85_xBx alloys at room temperature increases with increasing B concentration firstly, and then decreases slightly.