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

被引：6
|
作者：
Ma, S. C. [1 ,3 ]
Liu, Y. H. [2 ]
Shih, C. W. [3 ]
Lee, Y. I. [3 ]
Chang, W. C. [3 ]
机构：
[1] Nanchang Hangkong Univ, Sch Mat Sci & Engn, Nanchang 330063, Peoples R China
[2] Nanchang Hangkong Univ, Tech Coll, Nanchang 330034, Peoples R China
[3] Natl Chung Cheng Univ, Dept Phys, Chiayi 62102, Taiwan
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2014年 / 357卷
基金：
中国国家自然科学基金;
关键词：
Microstructure; Magnetic and magnetocaloric properties; Second-order magnetic transition; Melt-spun MnV0.02CoGe0.99 ribbons; MAGNETOCALORIC PROPERTIES; HYSTERESIS LOSSES; PHASE-TRANSITIONS; TEMPERATURE; ALLOYS; PRESSURE; VICINITY; SYSTEM;
D O I：
10.1016/j.jmmm.2014.01.022
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
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. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：41 / 44
页数：4
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