Tb solid solution and enhanced magnetostriction in Fe83Ga17 alloys

Three methods, casting, melt-quenching and melt-spinning were applied for preparing Tb-doped (Fe0.83Ga0.17)(100-x)Tb-x (0 <= x <= 0.47). The magnetostriction improved drastically by Tb solid dissolved in Fe83Ga17 alloys. A giant perpendicular magnetostrictions lambda(perpendicular to) up to -886 ppm was achieved in the (Fe0.83Ga0.17)(99.77)Tb-0.23 melt-spun ribbons. The enhanced magnetostriction was thought to be associated with the strong local magnetocrystalline anisotropy caused by the Tb doping into Fe83Ga17 alloys. (C) 2014 Elsevier B. V. All rights reserved.