Giant low-field magnetocaloric effect in Si alloyed Ni-Co-Mn-In alloys - Archive ouverte HAL Access content directly
Journal Articles Scripta Materialia Year : 2019

Giant low-field magnetocaloric effect in Si alloyed Ni-Co-Mn-In alloys

(1) , (1) , (1) , (1) , (1) , (2) , (3) , (4, 5) , (4, 5) , (1) , (1)
1
2
3
4
5

Abstract

For NiMn-based Heusler alloys, simultaneously achieving high magnetization difference and low thermal hysteresis across the magnetostructural transformation is of crucial importance to obtain large low-field actuated magnetocaloric properties. Here, the fifth element Si was introduced to replace In for reducing the thermal hysteresis in Ni-Co-Mn-In alloys while keeping a large magnetization change through the martensitic transformation. Consequently, a giant maximum entropy change ΔSMmax of 33.6 J kg−1 K−1 under the low field change of 2 T was achieved in a Ni45Co5Mn37In12Si1 alloy, which is among the highest values reported in NiMn-based alloys.
Not file

Dates and versions

hal-03080261 , version 1 (17-12-2020)

Identifiers

Cite

Zongbin Li, Shuya Dong, Zhenzhuang Li, Bo Yang, Fang Liu, et al.. Giant low-field magnetocaloric effect in Si alloyed Ni-Co-Mn-In alloys. Scripta Materialia, 2019, 159, pp.113-118. ⟨10.1016/j.scriptamat.2018.09.029⟩. ⟨hal-03080261⟩
19 View
0 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More