Low-Temperature Magnetic Properties and Magnetocaloric Effect of Fe-Zr-Cu Amorphous Alloys
Low-Temperature Magnetic Properties and Magnetocaloric Effect of Fe-Zr-Cu Amorphous Alloys
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Fe-Zr-Cu非晶合金的低温磁性能及磁热效应
DOI：
10.1007/s10909-020-02452-z
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发表时间：
2020
影响因子：
2
通讯作者：
Shen Baolong
中科院分区：
文献类型：
--
作者：
Yang Weiming;Li Wenyu;Wan Chao;Huo Juntao;Mo Jinyong;Liu Haishun;Shen Baolong
本文研究了Fe 91 − xZr 9Cux（x = 0.0，0.4和1.0）非晶薄带的低温磁性能和磁热性能。结果表明，随着Cu含量的增加，薄带的居里温度从210 K（x = 0）升高到218 K（x = 0.4），当Cu含量增加到1.0%时，薄带的居里温度降低到214 K。在50 kOe磁场下，Fe 91-xZr 9Cux（x = 0.0、0.4和1.0）非晶薄带的最大磁熵变（-Δ SM）max分别为2.63、2.75和2.88 J kg − 1K − 1。Fe91-xZr9Cux（x = 0.0、0.4和1.0）非晶薄带的相应制冷量（RC）值分别为114、121和120 J kg-1。这些值与先前研究的三元Fe基非晶合金所获得的值相当。这些结果表明，适量的Cu替代可以提高Fe基非晶合金的（-Δ SM）max和RC。这些铁基非晶合金在低温磁制冷和多功能材料方面具有广阔的应用前景。
In this work, low-temperature magnetic properties and magnetocaloric properties of Fe91−xZr9Cux(x= 0.0, 0.4 and 1.0) amorphous ribbons were investigated. It was found that the Curie temperature (TC) of the ribbons increases with Cu content from 210 (forx= 0) to 218 K (forx= 0.4), and decreases to 214 K with the further of 1.0% Cu. The values of the maximum magnetic entropy change (− ΔSM)maxwere found to be 2.63, 2.75 and 2.88 J kg−1K−1for the Fe91−xZr9Cux(x= 0.0, 0.4 and 1.0) amorphous ribbons, respectively, under the field of 50 kOe. The corresponding refrigeration capacity (RC) values of the Fe91−xZr9Cux(x= 0.0, 0.4 and 1.0) amorphous ribbons are 114, 121 and 120 J kg−1, respectively. These values are comparable to those obtained for the previously studied ternary Fe-based amorphous alloys. These results demonstrate that an appropriate amount of Cu substitution can enhance the (− ΔSM)maxand RC of Fe-based amorphous alloys. These Fe-based amorphous alloys are promising for application as low-temperature magnetic refrigerants and multi-functional materials.