Large magnetic entropy change and magnetostrain in a directionally solidified Ni45.7Co4.2Mn37.3Sb12.8 alloy
Large magnetic entropy change and magnetostrain in a directionally solidified Ni45.7Co4.2Mn37.3Sb12.8 alloy
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定向凝固Ni45.7Co4.2Mn37.3Sb12.8合金中的大磁熵变和磁致应变
DOI：
10.1016/j.jmmm.2019.166379
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发表时间：
2020-04-15
影响因子：
2.7
通讯作者：
Zuo, Liang
中科院分区：
文献类型：
--
作者：
Li, Zhenzhuang;Li, Zongbin;Zuo, Liang
Heusler-type Ni-(Co)-Mn-X (X = In, Sn, Sb) meta-magnetic alloys can exhibit various magneto-functional behaviors due to the strong coupling between the magnetic and structural orders. Here, we demonstrate large magnetocaloric effect and magnetic shape memory effect in a directionally solidified Ni45.7Co4.2Mn37.3Sb12.8 alloy with (A) preferred orientation. It is shown that large magnetic entropy change up to 27.4 J kg(-1) K-1 can be achieved under the field change of 5 T. Moreover, a large magnetic field-induced strain of 0.42% was also obtained with no-prestrain through inverse martensitic transformation induced by applying a magnetic field of 7 T. The present magnetostain is much higher than those in polycrystalline Ni-(Co)-Mn-Sb based alloys reported previously. Such enhanced magneto-functional behavior could be attributed to the highly textured microstructure and enlarged lattice distortion through Co addition.
