Stable magnetocaloric effect and refrigeration capacity in Co-doped FeCoMnZrNbB amorphous ribbons near room temperature
Stable magnetocaloric effect and refrigeration capacity in Co-doped FeCoMnZrNbB amorphous ribbons near room temperature
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近室温钴掺杂FeCoMnZrNbB非晶带材稳定的磁热效应和制冷能力
DOI：
10.1016/j.jallcom.2016.09.105
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发表时间：
2017-01
影响因子：
6.2
通讯作者：
Zhang Xuefeng
中科院分区：
文献类型：
--
作者：
Wang Gaofeng;Li Honglei;Zhao Zengru;Zhang Xuefeng
铁基非晶态合金具有较大的磁热效应、优异的力学性能和较高的电阻率，在磁制冷领域具有广阔的应用前景。本文研究了Co掺杂对Fe82−xCoxMn4Zr8Nb2B4薄带的磁热效应和致冷能力的影响。X射线衍射谱表明，Co掺杂的薄带为非晶态。当Co原子浓度在2~8之间变化时，居里温度可在271~363K之间变化。有利的是，Co掺杂薄带的等温熵变(ΔST)和致冷量(RC)几乎保持不变。当磁场变化3℃时，在80℃温度范围内，−Δ的最大值约为1.7J/kgK，RC值约为115J/kg。在室温附近稳定的磁热效应和致冷量表明，Co掺杂非晶薄带可作为磁制冷的致冷剂。
The Fe-based amorphous alloys are promising candidates for magnetic refrigeration due to their large magnetocaloric effect, outstanding mechanical property and high electrical resistivity. In this paper, the influence of Co addition on the magnetocaloric effect and refrigeration capacity has been studied for Fe82−xCoxMn4Zr8Nb2B4ribbons. X-ray diffraction patterns indicate that the Co-doped ribbons are amorphous. The Curie temperature can be adjusted from 271 to 363 K with the Co atomic concentration changing from 2 to 8. Favorably, both isothermal entropy change (ΔST) and refrigeration capacity (RC) remain nearly the same magnitude for the Co-doped ribbons. For a field change of 3 T, the maximum −ΔSTis about 1.7 J/kgK and theRCis about 115 J/kg for a temperature span of 80 K. The stable magnetocaloric effect and refrigeration capacity near room temperature reveals that the Co-doped amorphous ribbons may be considered as refrigerants for magnetic refrigeration.
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影响因子：
5.2
作者：
G. Wang;L. R. Li;Z. R. Zhao;X. Yu;X. Zhang
通讯作者：
G. Wang;L. R. Li;Z. R. Zhao;X. Yu;X. Zhang
影响因子：
4
作者：
Wada, H;Tanabe, Y
通讯作者：
Tanabe, Y
影响因子：
3.2
作者：
V. Franco;J. Borrego;C. F. Conde;A. Conde;M. Stoica;S. Roth
通讯作者：
V. Franco;J. Borrego;C. F. Conde;A. Conde;M. Stoica;S. Roth
影响因子：
2.7
作者：
Franco, V.;Conde, A.;Blazquez, J. S.
通讯作者：
Blazquez, J. S.
影响因子：
3.2
作者：
Franco, V.;Blazquez, J. S.;Conde, A.
通讯作者：
Conde, A.