Large magnetostriction in Fe100-xAlx (15<=x<=30) melt-spun ribbons
Abstract
Magnetostriction of Fe100-xAlx(15⩽x⩽30) al1oys has been largely improved by using melt-spun method. The large magnetostriction up to -700ppm 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.
- Publication:
-
Applied Physics Letters
- Pub Date:
- September 2004
- DOI:
- 10.1063/1.1789242
- Bibcode:
- 2004ApPhL..85.1751L
- Keywords:
-
- 75.50.Bb;
- 75.80.+q;
- 75.70.Ak;
- 75.30.Gw;
- 68.55.Jk;
- 68.55.Ac;
- 68.60.Bs;
- Fe and its alloys;
- Magnetomechanical and magnetoelectric effects magnetostriction;
- Magnetic properties of monolayers and thin films;
- Magnetic anisotropy;
- Structure and morphology;
- thickness;
- crystalline orientation and texture;
- Nucleation and growth: microscopic aspects;
- Mechanical and acoustical properties