Magnetic, Magnetocaloric Properties, and Phenomenological Model in Amorphous Ni80−xFex(SiB)20 Alloys with (x = 0, 2.4, 8, and 16)
| Autor: | M. Bouhbou, Z. Yamkane, Reda Moubah, H. Lassri, S. El Ouahbi, H. Idrissi, S. Derkaoui |
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| Rok vydání: | 2018 |
| Předmět: |
010302 applied physics
Materials science Magnetic moment Transition temperature Thermodynamics Condensed Matter Physics 01 natural sciences Electronic Optical and Magnetic Materials Amorphous solid Magnetic field 0103 physical sciences Phenomenological model Magnetic refrigeration Curie temperature Melt spinning 010306 general physics |
| Zdroj: | Journal of Superconductivity and Novel Magnetism. 32:2091-2096 |
| ISSN: | 1557-1947 1557-1939 |
| DOI: | 10.1007/s10948-018-4924-0 |
| Popis: | Amorphous Ni80−xFex(SiB)20 ribbons with different Fe concentrations (0 ≤ x ≤ 16) were fabricated by melt spinning technique, and their magnetic and magnetocaloric properties were investigated and a phenomenological model was also applied. The Curie temperature (TC), magnetic moment of transition metal and maximum magnetic entropy change (− ΔSM) increase with increasing Fe content. At a magnetic field change of 2 T, the (− ΔSM) and relative cooling power (RCP) show the highest values of 0.53 J/kg K and 85 J kg−1 respectively for Fe16Ni64(SiB)20 alloys. In addition, a satisfactory agreement between the experimental and Hamad’s phenomenological model is reported. |
| Databáze: | OpenAIRE |
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