Magnetic properties of melt-spun ribbons (Sm1–Zr )(Fe0.92Ti0.08)10 with ThMn12 structure and their hydrides
| Autor: | P. B. Terent’ev, D. A. Kolodkin, E. G. Gerasimov, Chengbao Jiang, A. G. Popov, Tianli Zhang, A. V. Protasov, V. S. Gaviko |
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| Rok vydání: | 2019 |
| Předmět: |
Materials science
Annealing (metallurgy) Analytical chemistry 02 engineering and technology General Chemistry Coercivity 010402 general chemistry 021001 nanoscience & nanotechnology Magnetic hysteresis 01 natural sciences Magnetic susceptibility 0104 chemical sciences Amorphous solid Magnetization Geochemistry and Petrology Remanence 0210 nano-technology Eutectic system |
| Zdroj: | Journal of Rare Earths. 37:1066-1071 |
| ISSN: | 1002-0721 |
| DOI: | 10.1016/j.jre.2019.04.007 |
| Popis: | The structure and magnetic hysteresis properties of the cast Sm1–xZrx(Fe0.92Ti0.08)10 (x = 0–0.3) alloys and melt-spun ribbons prepared from them were studied. In the cast alloy with x > 0.2, a considerable amount of the eutectic phase is found in the SEM micrographs. Analysis of the temperature dependences of the magnetic susceptibility and XRD patterns allows amorphous state in the as-spun ribbons with x > 0.2 to be determined. The specific magnetization measured in a field of 17 kOe and remanence decrease with increasing annealing temperature from 800 to 900 °C and weakly depend on Zr concentration. The maximal value of coercivity Нс = 4.7 kOe is obtained on the ribbons with х = 0.2 after annealing at 850°С for 10 min. After additional hydrogenation of the ribbons, both the coercivity and remanence increase by 54% and 7%, respectively. |
| Databáze: | OpenAIRE |
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