Effect of Isothermal Ageing on Structural and Magnetic Properties of Ni47Mn40Sn13 Ferromagnetic Shape Memory Alloy
| Autor: | A. Ghotbi varzaneh, P. Kameli, F. Karimzadeh, H. Salamati |
|---|---|
| Jazyk: | perština |
| Rok vydání: | 2015 |
| Předmět: | |
| Zdroj: | Journal of Advanced Materials in Engineering, Vol 34, Iss 3, Pp 29-38 (2015) |
| Druh dokumentu: | article |
| ISSN: | 1025-2851 2423-5733 |
| Popis: | In this investigation, Ni47Mn40Sn13 ferromagnetic shape memory alloy was prepared by mechanical alloying. The metal powders were ball milled in argon atmosphere for 20 hours. X-ray diffraction pattern confirmed formation of crystalline structure of Heusler alloy. As-milled powder samples were sealed in quartz tubes under high vacuum and subjected to heat treatments at 950°C for different time durations. Then, the effect of isothermal ageing on structural, magnetic and electrical properties of samples was investigated. Results of electrical resistance displayed a metal-like behavior around martensitic transformation. The results showed that 16 hours of annealing was the optimal time for producing this alloy which could be an appropriate candidate for magnetic refrigerant. |
| Databáze: | Directory of Open Access Journals |
| Externí odkaz: |
|