Large magnetostriction in Fe100-xAlx (15≤x≤30) melt-spun ribbons

Liu, Z. H.; Liu, G. D.; Zhang, M.; Wu, G. H.; Meng, F. B.; Liu, H. Y.; Yan, L. Q.; Qu, J. P.; Li, Y. X.
September 2004
Applied Physics Letters;9/6/2004, Vol. 85 Issue 10, p1751
Academic Journal
Magnetostriction of Fe100-xAlx (15≤x≤30) al1oys has been largely improved by using melt-spun method. The large magnetostriction up to -700 ppm obtained in Fe81Al19 sample is about 5 times as large as that in conventional bulk samples of Fe–Al composition. It has been ascribed to the high concentration of Al–Al atom pairs created by melting-spinning method and their strongly preferential orientation in [100] textured ribbon plane. The remarkable anisotropic magnetostriction reflects the magnetoelastic competition occurring in those strong textured and thin ribbon samples. The composition dependence of the magnetostriction in ribbon samples has been found to be consistent with bulk materials.


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