Influence of annealing on structural, magnetic and transport properties of melt spun ribbons of Co-Ni-Al alloy
| Autor: | Michail Gorshenkov, M. Seredina, Vladimir Khovaylo, Maria Lyange, Igor Shchetinin, Sergey Taskaev |
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| Rok vydání: | 2017 |
| Předmět: |
010302 applied physics
Materials science Annealing (metallurgy) Metallurgy Alloy 02 engineering and technology engineering.material 021001 nanoscience & nanotechnology 01 natural sciences Hall effect Diffusionless transformation Martensite 0103 physical sciences engineering Melt spinning Composite material 0210 nano-technology |
| Zdroj: | Materials Today: Proceedings. 4:4707-4711 |
| ISSN: | 2214-7853 |
| Popis: | In this work we studied influence of heat treatment on structural, magnetic and transport properties of melt spun ribbons of Co 38 Ni 33 Al 29 Heusler alloy. Investigation of as-prepared ribbons revealed that they have a two-phase (β + γ) structure and are magnetically ordered at room temperature. Measurements of magnetic and transport properties showed that the as-prepared ribbons undergoes martensitic transformation at martensite start temperature M s ∼ 120 K. Annealing of the as-prepared ribbons resulted in disappearance of the martensitic transformation and suppression of magnetic properties. These changes in the physical properties of the melt spun ribbons were attributed to annealing-induced growth of the γ phase. Measurements of Hall effect indicated that dominant carriers in both as-prepared and annealed ribbons are hole-like. |
| Databáze: | OpenAIRE |
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