抄録
The magnetostrictive properties of Tb0.5Dy0.5Fe2-xMx Laves phase compounds (M = Co, Ni, Mn, Zn, Cu, Cr) were examined. In various compounds, substitution of Zn and Ni brought about a reduction of the pre-stress dependence on magnetostriction, and the magnetostriction increased to more than 800 ppm in a lower magnetic field of 80 kA/m under a larger compressive pre-stress of 40 MPa. In Tb-Dy-Fe-Zn compounds, which showed the best magnetostrictive properties, changes in the Curie temperature, lattice spacing, and spin re-orientation temperature of the Laves phase were observed with increasing Zn content.
