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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… Click to show full abstract
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.
Journal Title: Journal of Superconductivity and Novel Magnetism
Year Published: 2018
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