Near Room Temperature Magnetocaloric Response of an (FeNi)ZrB Alloy

被引：40
|
作者：
Ipus, Jhon J. [1 ]
Ucar, Huseyin [1 ]
McHenry, Michael E. [1 ]
机构：
[1] Carnegie Mellon Univ, Dept Mat Sci & Engn, Pittsburgh, PA 15213 USA
来源：
IEEE TRANSACTIONS ON MAGNETICS | 2011年 / 47卷 / 10期
基金：
美国国家科学基金会;
关键词：
Ball milling; iron alloys; magnetic materials; magnetic properties; nanostructured materials; NANOCOMPOSITE ALLOYS;
D O I：
10.1109/TMAG.2011.2159781
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Mechanical alloying of (Fe70Ni30)(89)Zr7B4 powders leads to the formation of a gamma-FeNi phase. In order to obtain single gamma-phase, a powdered sample was solution annealed in the gamma-phase field and water quenched. The Curie temperature of this powder was slightly higher than room temperature. The refrigerant capacity calculated for this alloy, RCFWHM similar to 330 J . kg(-1) for 5 T, is comparable to other prominent room temperature magnetocaloric materials, making this alloy a good candidate for magnetic refrigeration near room temperature with additional benefits that is non-rare earth containing and less expensive than many alternatives.
引用
收藏
页码：2494 / 2497
页数：4
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