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Gd3-xZnxAl2系合金磁热效应的直接测量
Direct Measurement of Magnetocaloric Effects of Gd3-xZnxAl2
【摘要】 用真空高频磁悬浮炉制备了Gd3Al2、Gd2.9Zn0.1Al2、Gd2.7Zn0.3Al2、Gd2.4Zn0.6Al2四种合金。用直接测量法测量了在1.5T磁场下这四种合金的磁热效应。结果表明,在1.5T磁场下,Gd3Al2、Gd2.9Zn0.1Al2、Gd2.7Zn0.3Al2、Gd2.4Zn0.6Al2的最大绝对温变分别为2.0K、1.4 K、1.1K和0.7K;当Zn含量为0.1时,居里温度为287K。
【Abstract】 Gd3Al2,Gd2.9Zn0.1Al2,Gd2.7Zn0.3Al2,Gd2.4Zn0.6Al2 alloys were prepared in a high-frequency floating furnace.Their magnetocaloric effects were measured directly at the magnetic field of 1.5 Tesla.The results indicated that the maximum adiabatic temperature changes of Gd3Al2,Gd2.9Zn0.1Al2,Gd2.7Zn0.3Al2,Gd2.4Zn0.6Al2 are 2.0K,1.4K,1.1 K,0.7K,respectively.The Cure temperatures is 287K when the content of Zn is 0.1.
【关键词】 Gd3-xZnxAl；
磁热效应；
直接测量；
绝对温变；
【Key words】 Gd3-xZnxAl2； direct measurement； magnetocaloric effect； adiabatic temperature change；
【Key words】 Gd3-xZnxAl2； direct measurement； magnetocaloric effect； adiabatic temperature change；
- 【文献出处】 稀土 ,Chinese Rare Earths , 编辑部邮箱 ,2008年05期
- 【分类号】O482.5
- 【被引频次】3
- 【下载频次】70