Magnetostriction of Epoxy-Bonded Tb_0.22Dy_0.48Pr_0.3(Fe_0.9B_0.1)_1.93 Composites

Abstract

The magnetostrictive Tb0.22Dy0.48Pr0.3(Fe0.9B0.1)1.93 alloy, and its 0-3 and pseudo 1-3 type epoxy-bonded composites were fabricated by curing without and with a magnetic field. The structural, magnetic and magnetoelastic properties were in investigated by means of x-ray diffraction, an alternating gradient magnetometer and a standard strain technique. The easy magnetization direction (EMD) is lying along <111> direction at room temperature. The 1-3 type composites has a larger magnetostriction than the 0-3 composite has, which can be attributed to the <111>-textured orientation and the chain structure.