Publikationsdatum:
2015-03-28
Beschreibung:
The (Tb 0.3 Dy 0.7 Fe 1.9 ) 1− x (Tb 0.15 Ho 0.85 Fe 1.9 ) x 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 and were homogenized at 1000 °C for 1 day and at 950 °C for 5 days. Then, the homogenized specimens with 5 mm in diameter and 8 mm in length were annealed under the magnetic field of 320 kA/m. 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 main phase of annealed (Tb 0.3 Dy 0.7 Fe 1.9 ) 1− x (Tb 0.15 Ho 0.85 Fe 1.9 ) x alloys is the (Tb,Dy,Ho)Fe 2 phase with the MgCu 2 -type structure. The magnetostriction λ // and magnetization M of (Tb 0.3 Dy 0.7 Fe 1.9 ) 1− x (Tb 0.15 Ho 0.85 Fe 1.9 ) x alloys increases with increasing x from x = 0.1 to x = 0.3 when H
Print ISSN:
0021-8979
Digitale ISSN:
1089-7550
Thema:
Physik
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