Magnetic properties and magnetostriction in grain-oriented (TbxDy1−x)(Fe1−yMny)1.95 compounds

Abstract

Articles you may be interested inEffect of B on the microstructure and magnetostriction of zoned Dy 0.7 Tb 0.3 Fe 1.95

A kind of wide operating temperature range giant magnetostrictive alloys

“…6 shows the magnetostriction of the Tb 0.36 Dy 0.64 -(Fe 0.70 Co 0.30 ) 2 grain-aligned rod with 1 1 2 preferred orientation at −80, 19 and 103 • C. It can be seen that the magnetostriction in 3 kOe decreases as the temperature increases, with or without compressive pre-stress. In addition, the magnetostriction jump effect is less obvious at −80 • C than at 19 and 103 • C, which is similar to Tb 0.5 Dy 0.5 (Fe 0.9 Mn 0.1 ) 1.95 single crystal [15]. Under 10 MPa pre-stress, λ P 3 kOe reaches 1400, 1270 and 1180 ppm at −80, 19 and 103 • C, respectively.…”

Progress in bulk MgCu2-type rare-earth iron magnetostrictive compounds

“…[16] Much research work has been done on the substitution of Mg, Al, Ga, Si and almost all the 3d transition metals for Fe in Terfenol-D, in an effort to further improve its magnetic and magnetostrictive properties. [17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32] However, few of the substitutions essentially improve the desired properties; conversely, most of them decrease the magnetostriction of Terfenol-D at RT. Indeed, the superexcellent magnetostriction properties of the Terfenol-D are difficult to surpass, but a further reason might be that, in Terfenol-D, the anisotropy is minimized by modulating the Tb/Dy ratio, and a substitution for Fe induces an increase of anisotropy.…”