Abstract
The structure, spin configuration, magnetocrystalline anisotropy compensation, magnetic properties, and magnetostriction of TbxDy0.9-xNd0.1(Fe0.8Co0.2)(1.93) (0.20 axis (x >= 0.25) to the axis (x >= 0.30) with increasing Tb content, subjected to the anisotropy compensation between Tb3+ and Dy3+ ions. The analysis of X-ray diffraction, EMD and magnetostriction show that TbxDy0.9-xNd0.1(Fe0.8Co0.2)(1.93) is an anisotropy compensation system and the compensation point is realized around x = 0.30. The Laves phase compound Tb0.4Dy0.5Nd0.1(Fe0.8Co0.2)(1.93) has a large spontaneous magnetostriction, the coefficient lambda(111) up to about 1640 ppm. The epoxy bonded 0-3 and pseudo-1-3 composites were fabricated by curing without and with a magnetic field. A high magnetostriction, longitudinal lambda(||) and linear anisotropic lambda(a)(=lambda(||)-lambda(perpendicular to)) up to around 390 and 650 ppm at 6 kOe, respectively, is obtained for the grain -oriented pseudo-1-3 epoxy/Tb0.4Dy0.5Nd0.1(Fe0.8Co0.2)(1.93) composite with 20 vol% alloy particles. (C) 2013 Elsevier B.V. All rights reserved.
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