Microstructure and magnetic properties in melt-spun MnV0.02CoGe0.99 ribbons

作者：Ma, S. C.^*; Liu, Y. H.; Shih, C. W.; Lee, Y. I.; Chang, W. C.

来源：Journal of Magnetism and Magnetic Materials, 2014, 357: 41-44.

DOI：10.1016/j.jmmm.2014.01.022

• Microstructure
• Magnetic and magnetocaloric properties
• Second-order magnetic transition
• Melt-spun MnV0.02CoGe0.99 ribbons

The melt-spun MnV0.02CoGe0.99 ribbons were successfully prepared and the microstructure, magnetic and magnetocaloric properties of these ribbons were investigated. A single phase with the hexagonal Ni2In-type structure was confirmed by XRD methodology at room temperature. In these ribbons, a ferromagnetic phase transition (similar to 252 K) with the second-order nature was observed accompanied by an abrupt change of magnetization, which induces moderate values of magnetic entropy change and relative cooling power, 0.9 J/kgK and 36 J/kg, respectively, in the magnetic field change of Delta H=10 kOe. The appreciable magnetocaloric effect with an excellent thermal/magnetic reversibility as well as more economical would make these ribbons materials suitable as a magnetic refrigerant.

• 出版日期2014-5
• 单位南昌航空大学