Abstract
The x(Tb0.15Ho0.85Fe2) + (1 − x)(Tb0.3Dy0.7Fe2) alloys were prepared in an arc furnace under high purity argon. The as-cast samples wrapped in Mo foil were sealed in a silica tube filled with high purity argon. The static measurement of magnetostriction (λ//, λ⊥) was made by standard strain gauge, and the magnetization M was measured by a vibrating sample magnetometer. It is found that the magnetostriction λ// of x(Tb0.15Ho0.85Fe2) + (1 − x)(Tb0.3Dy0.7Fe2) alloys decreases with increasing x and it does from 880 × 10−6 for x = 0 to 210 × 10−6 for x = 0.9 at the magnetic field of 640 kA/m. The ratio (λ///Wh) of magnetostriction to hysteresis exhibits a peak when x = 0.1, and it means that the Tb0.285Dy0.63Ho0.085Fe2 (x = 0.1) alloy possesses both large magnetostriction and small magnetostrictive hysteresis.
Published Version
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