Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1613140 | Journal of Alloys and Compounds | 2014 | 5 Pages |
Abstract
The structure, spin configuration, magnetocrystalline anisotropy compensation, magnetic properties, and magnetostriction of TbxDy0.9âxNd0.1(Fe0.8Co0.2)1.93 (0.20 ⩽ x ⩽ 0.60) alloys are investigated. The easy magnetization direction (EMD) at room temperature rotates from the ã1 0 0ã axis (x ⩽ 0.25) to the ã1 1 1ã 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 TbxDy0.9âxNd0.1(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 λ111 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 λ|| and linear anisotropic λa(= λ||âλâ¥) up to around 390 and 650 ppm at 6 kOe, respectively, is obtained for the grain ã1 1 1ã-oriented pseudo-1-3 epoxy/Tb0.4Dy0.5Nd0.1(Fe0.8Co0.2)1.93 composite with 20 vol% alloy particles.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
H.Y. Yin, J.J. Liu, Z.B. Pan, X.Y. Liu, X.C. Liu, L.D. Liu, J. Du, P.Z. Si,