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Gd₅(Si_xGe_1-x)4合金磁热效应的直接测量

Direct measurement of magnetocaloric effects in  Gd 5(Si x Ge 1-x ) 4

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【作者】黄焦宏；王正德；金培育；刘金荣；张泽玉；王贵；杨保荣；成永顺；邱巨峰；徐来自；

【Author】 HUANG Jiao hong 1,WANG Zheng de 2,JIN Pei yu 1,LIU Jin rong 1,ZHANG Ze yu 2, WANG Gui 3,YANG Bao rong 1,CHENG Yong shun 1,QIU Ju feng 1,XU Lai zi 1 (1.Baotou Research Institute of Rare Earth,Baotou 014010,China;2.Department of Metallu

【机构】包头稀土研究院!内蒙古包头014010；包头钢铁学院冶金与化学工程系!内蒙古包头014010；包头钢铁学院材料科学与工程系!内蒙古包头014010；包头稀土研究院!内蒙古；

【摘要】为了选择合适的磁致冷材料 ,确立更准确的测量方法 ,利用永磁体作磁场 ,采用高灵敏温度传感器 ,直接测量了Gd5(SixGe1-x) 4合金样品的ΔTad-T曲线 ,并与文献中相同成分的样品间接测量的结果进行了比较 .分析了测量结果以及存在的误差更多还原

【Abstract】 For the purpose of selecting proper megnetic refrigeration materials and establishing more accurate measurement method, ΔT ad T curves of  Gd 5(Si x Ge 1-x ) 4 alloy samples were determined directly by using a high sensitive thermosensor in the magnetic field produced by permanent magnet in the temperature adjusted chamber.The measured results were analyzed and compared with that of the samples with the same composition as given in the literatures,and the measurement errors were discussed.更多还原