The LaFe11.2Co0.7Si1.1Cx carbides for magnetic refrigeration close to room temperature
The LaFe11.2Co0.7Si1.1Cx carbides for magnetic refrigeration close to room temperature
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DOI：
10.1063/1.2939098
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发表时间：
2008-06-09
影响因子：
4
通讯作者：
Gignoux, Damien
中科院分区：
文献类型：
--
作者：
Balli, Mohamed;Fruchart, Daniel;Gignoux, Damien
研究了碳对LaFe 11.2Co 0.7Si 1.1Cx化合物的结构、磁性和磁热性能的影响。居里温度随着碳含量的增加而增加。当x = 0.1、0.2和0.3时，在磁场变化为5 T时的最大磁熵变分别为14.5、9.8和8.3 J/kg K。提出了一种LaFe_（11.2）Co_（0.7）Si_（1.1）Cx基复合材料，用于室温附近的Ericsson循环磁系统。所获得的复合材料的熵变在该温度范围内保持近似恒定。(C)2008年美国物理研究所。
The influence of carbon on the structural, magnetic, and magnetocaloric properties of LaFe11.2Co0.7Si1.1Cx compounds was investigated. The Curie temperature increases with increasing the carbon content. The maximum magnetic entropy changes under a magnetic field change of 5 T are about 14.5, 9.8, and 8.3 J/kg K for x = 0.1, 0.2, and 0.3, respectively. A composite material based on LaFe11.2Co0.7Si1.1Cx was proposed for magnetic systems using Ericsson cycle for refrigeration close to room temperature. The obtained entropy change of the composite remains approximately constant in this temperature range. (C) 2008 American Institute of Physics.