改善GdSiGe室温磁致冷材料磁热性能的途径

Measures Improving Magnetocaloric Properties of GdSiGe Room-Te mperature Magnetic Refrigerating Alloy

GdSiGe合金是最优良的室温磁致冷材料之一。介绍了改善GdSiGe合金磁热性能的各种途径,涉及该材料的合金化、熔炼、凝固、热处理、纳米化、复合化等方面的工作研究。

GdSiGe is a kind of magnetic refrigerating alloy having the best magnetocaloric p roperties by now. Some work done in our laboratory and by other researchers in the world abou t improving the magnetocaloric proprieties of the GdSiGe alloy were introduced, from the point of view of alloying, melting, solidification, heat treatment, nan ometrization, co mposite. It aims at enhancing the entropy change and the adiabatic temperature c hange. It will be helpful for applying the GdSiGe magnetic refrigerator alloy to the room magnetic refrigeration.