| Magnetocaloric effect of （Gd1-xNdx）Co2 alloys in low magnetic field |
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| 引用本文： | CHEN Xiang,;ZHUANG Yinghong,;YAN Jialin,;ZHOU Kaiwen,;LI Kefeng. Magnetocaloric effect of （Gd1-xNdx）Co2 alloys in low magnetic field[J]. 稀有金属(英文版), 2008, 27(4): 350-353. DOI: 10.1016/S1001-0521 |
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| 作者姓名： | CHEN Xiang, ZHUANG Yinghong, YAN Jialin, ZHOU Kaiwen, LI Kefeng |
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| 作者单位： | CHEN Xiang(Key laboratory of the Ministry of Education of China for Nonferrous Metal Materials and New Processing Technology,Gucmgxi University,Nanning 530004,China;Department of Physics and Electronic Informational Engineering,Neijiang Teachers College,Neijiang 641002,China);ZHUANG Yinghong,YAN Jialin,ZHOU Kaiwen,LI Kefeng(Key laboratory of the Ministry of Education of China for Nonferrous Metal Materials and New Processing Technology,Gucmgxi University,Nanning 530004,China) |
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| 摘 要： | The phases and magnetocaloric effect in the alloys （Gd1-xNdx）Co2 with x = 0, 0.1, 0.2, 0.3, and 0.4 were investigated by X-ray diffraction analysis and magnetization measurement. The samples are single phase with a cubic MgCu2-type structure. The To decreases obviously with increasing Nd content from 404 K of the alloy with x = 0 to 272 K of the alloy with x = 0.4; forx = 0.3, the To is 296 K, which is near room temperature. In the samples （Gd1-xNdx）Co2 with x = 0.0, 0.1, 0.2, 0.3, and 0.4, the maximum magnetic entropy change is 1.471, 1.228, 1.280, 1.381 and 1.610 J·kg^-1·K^-1, respectively, in the applied field range of 0-2.0 T. The results of Arrott plots confirmed that the transition type were second order magnetic transition forx = 0, 0.3, and 0.4.
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| 关 键 词： | 磁性 冷却技术 材料 磁热作用 |
| 收稿时间： | 2007-08-05 |
| 修稿时间： | 2007-10-27 |
Magnetocaloric effect of (Gd1-xNdx)Co2 alloys in low magnetic field |
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| CHEN Xiang,ZHUANG Yinghong,YAN Jialin,ZHOU Kaiwen,LI Kefeng. Magnetocaloric effect of (Gd1-xNdx)Co2 alloys in low magnetic field[J]. Rare Metals, 2008, 27(4): 350-353. DOI: 10.1016/S1001-0521 |
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| Authors: | CHEN Xiang ZHUANG Yinghong YAN Jialin ZHOU Kaiwen LI Kefeng |
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| Affiliation: | 1. Key laboratory of the Ministry of Education of China for Nonferrous Metal Materials and New Processing Technology,Gucmgxi University,Nanning 530004,China;Department of Physics and Electronic Informational Engineering,Neijiang Teachers College,Neijiang 641002,China
2. Key laboratory of the Ministry of Education of China for Nonferrous Metal Materials and New Processing Technology,Gucmgxi University,Nanning 530004,China |
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| Abstract: | The phases and magnetocaloric effect in the alloys (Gd1-xNdx)Co2 with x = 0,0.1,0.2,0.3,and 0.4 were investigated by X-ray diffraction analysis and magnetization measurement.The samples are single phase with a cubic MgCu2-type structure.The Tc decreases obviously with increasing Nd content from 404 K of the alloy with x = 0 to 272 K of the alloy with x = 0.4;for x = 0.3,the Tc is 296 K,which is near room temperature.In the samples (Gd1-xNdx)Co2 with x = 0.0,0.1,0.2,0.3,and 0.4,the maximum magnetic entropy change is 1.471,1.228,1.280,1.381 and 1.610 J.kg-1.K-1,respectively,in the applied field range of 0-2.0 T.The results of Arrott plots confirmed that the transition type were second order magnetic transition for x = 0,0.3,and 0.4. |
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| Keywords: | magnetic refrigeration materials magnetocaloric effect magnetic entropy change phase transition |
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