Magnetic Properties of Melt-Spun CoMnSi(B) Alloys

被引：1
作者：
Suarez, Rafael G. [1 ]
Miranda, Aida [1 ]
Sanchez-Llamazares, J. L. [2 ]
Betancourt, I. [1 ]
机构：
[1] Univ Nacl Autonoma Mexico, Dept Mat Metalicos&Ceram, Inst Invest Mat, Ave Univ 3000,Ciudad Univ, Mexico City 04510, Mexico
[2] Inst Potosino Invest Cientif &Tecnol, Camino Presa San Jose 2055,Lomas Secc 4a, San Luis Potosi 78216, Mexico
来源：
JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM | 2023年 / 36卷 / 06期
关键词：
Melt-spun alloys; MnCoSi alloys; Magnetic properties; Magnetocaloric response; MNCOSI ALLOY; REFRIGERATION;
D O I：
10.1007/s10948-023-06597-2
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
MnCoSi and MnCoSiB0.5 alloys were obtained by melt-spinning technique in order to attain polycrystalline microstructures with average grain sizes well below 10 microns. Phase distribution studied by X-ray analysis indicated single-phase materials with orthorhombic structure and TiNiSi-type crystal symmetry. Chemical homogeneity was verified by means of scanning electron microscopy, whereas magnetic behavior corresponded to soft magnetic materials with coercivity values lower than 20 Oe and saturation magnetization of 80 emu/g. Magnetocaloric response of these MnCoSiB alloys was characterized by a maximum magnetic entropy change of 1.0 J/kg K (for a magnetic field variation of 2.0 Tesla) and attractive refrigerant capacity over 100 J/kg, which represents a significant enhancement respect to equivalent MnCoGe alloys.
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收藏
页码：1541 / 1547
页数：7
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