Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1802288 | Journal of Magnetism and Magnetic Materials | 2009 | 5 Pages |
Abstract
Pr(Fe0.4Co0.6)1.93 ribbons were prepared by a melt-spinning method. Their structure and magnetic properties are investigated as functions of wheel speed and annealing temperature. The as-spun ribbon consists of a Pr(Fe, Co)2 cubic Laves phase and an amorphous phase at a wheel speed of vâ¥35 m/s, while the non-cubic phases of PuNi3-type and rare earth appear when the speed lower than 30 m/s. A single Pr(Fe, Co)2 phase with MgCu2-type structure has been synthesized by the process for the wheel speed of vâ¥35 m/s and subsequent annealing at 500 °C for 30 min. The epoxy/Pr(Fe0.4Co0.6)1.93 composite has been produced by a cold isostatic pressing technique, and the magnetic properties have been investigated. The composite rod sample possesses good magnetostrictive properties, i.e., a large magnetostriction (λa=λâ¥âλâ¥) of 710 ppm at 800 kA/m and a dynamic coefficient d33 of 0.67 nm/A at 100 kA/m, and is of practical value.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
J.J. Liu, X.C. Liu, W.S. Zhang, P.Z. Si,