Magnetocaloric effect of (Gd1-xNdx)Co2 alloys in low magnetic field
来源期刊：Rare Metals2008年第4期
论文作者：CHEN Xiang a, b, ZHUANG Yinghong a, YAN Jialin a, ZHOU Kaiwen a, and LI Kefeng a a Key laboratory of the Ministry of Education of China for Nonferrous Metal Materials and New Processing Technology, Guangxi University, Nanning , China b Department of Physics and Electronic Informational Engineering, Neijiang Teachers College, Neijiang , China
文章页码：350 - 353
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 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.
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 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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