Structure and magnetostriction of melt-spun

Fe81-x,NixGa19(with x ranging from 0-25 at.% Ni) ribbons were made by melt spinning method. We have studied the structural (phases, texturing, and lattice parameter), magnetic (saturation magnetization and saturation magnetostriction) properties of these ribbons. The main results are as follows: (i) For x <= 10, all the ribbons are A(2) single phase; for x=15, the ribbon is of A(2)+L1(2)+DO3+E2(1) phase; for x=20, the ribbon is of A(2)+L1(2)+DO3+B-2 phase; for x=25, only A(2) and L1(2) phases exist. (ii) For x=5 and 15, an obvious (211) texture was detected, whereas other ribbqns are (110) textured, no (100) texture was tested. (iii) (110) texture in our ribbons brought low saturation magnetic field (Hs) and high saturation magnetostrction (lambda s). (iv) E2(1) phase played a positive role in the magnetostricion of FeNiGa ribbons.