Giant Magnetostrictions of Tb-Dy-Fe Polycrystals with <110> Axial Alignment

摘要

Preparing method and processing of Tb-Dy-Fe alloy samples with [110] axial orintation as well as their magnetostrictive properties have been studied. It has been found that the magnetostrictive strains of polycrystall samples with [110] axial orientation can reach (1550-1900)× 10~-6 in a low magnetic field less than 80 KA/m, which are equal to or somewhat better than that of the polycrystal samples with [112] axial orientation.