Giant room-temperature inverse and conventional magnetocaloric effects in Ni-Mn-In alloys

Xuexi Zhang; Mingfang Qian; Ruizhe Su; Lin Geng

doi:10.1016/j.matlet.2015.10.076

Giant room-temperature inverse and conventional magnetocaloric effects in Ni-Mn-In alloys

Xuexi Zhang^*
, Mingfang Qian
, Ruizhe Su
, Lin Geng

^*Corresponding author for this work

Harbin Institute of Technology

Research output: Contribution to journal › Article › peer-review

18 Scopus citations

Abstract

The room-temperature magnetocaloric effects (MCE) in polycrystalline Ni_47.74Mn_37.06In_15.20 alloy were investigated. The magnetic-field-induced phase transformation from martensite to austenite phase was confirmed. Both inverse and conventional magnetocaloric effects were attained at a magnetic field up to 50,000 Oe. The inverse magnetic entropy change (ΔS_m) reaches 30.7 J/kg K around 282 K at 50,000 Oe due to the martensite to austenite first order transformation. Furthermore, the conventional ΔS_m reaches -6.45 J/kg K around 294 K at 50,000 Oe related to the austenitic ferromagnetic to paramagnetic second order magnetic transition. The giant inverse and conventional magnetocaloric effects co-occur in a wide temperature range 267.5-297.5 K. This makes ternary Ni_47.74Mn_37.06In_15.20 alloy a promising room-temperature magnetic refrigerant.

Original language	English
Pages (from-to)	274-276
Number of pages	3
Journal	Materials Letters
Volume	163
DOIs	https://doi.org/10.1016/j.matlet.2015.10.076
State	Published - 15 Jan 2016
Externally published	Yes

Keywords

Magnetic entropy change
Magnetic materials
Magnetocaloric effect (MCE)
Metals and alloys
Ni-Mn-In
Phase transformation

Access to Document

10.1016/j.matlet.2015.10.076

Cite this

@article{80c0c4c23402488a812160cf1330eef3,

title = "Giant room-temperature inverse and conventional magnetocaloric effects in Ni-Mn-In alloys",

abstract = "The room-temperature magnetocaloric effects (MCE) in polycrystalline Ni47.74Mn37.06In15.20 alloy were investigated. The magnetic-field-induced phase transformation from martensite to austenite phase was confirmed. Both inverse and conventional magnetocaloric effects were attained at a magnetic field up to 50,000 Oe. The inverse magnetic entropy change (ΔSm) reaches 30.7 J/kg K around 282 K at 50,000 Oe due to the martensite to austenite first order transformation. Furthermore, the conventional ΔSm reaches -6.45 J/kg K around 294 K at 50,000 Oe related to the austenitic ferromagnetic to paramagnetic second order magnetic transition. The giant inverse and conventional magnetocaloric effects co-occur in a wide temperature range 267.5-297.5 K. This makes ternary Ni47.74Mn37.06In15.20 alloy a promising room-temperature magnetic refrigerant.",

keywords = "Magnetic entropy change, Magnetic materials, Magnetocaloric effect (MCE), Metals and alloys, Ni-Mn-In, Phase transformation",

author = "Xuexi Zhang and Mingfang Qian and Ruizhe Su and Lin Geng",

note = "Publisher Copyright: {\textcopyright} 2015 Elsevier B.V.",

year = "2016",

month = jan,

day = "15",

doi = "10.1016/j.matlet.2015.10.076",

language = "英语",

volume = "163",

pages = "274--276",

journal = "Materials Letters",

issn = "0167-577X",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Giant room-temperature inverse and conventional magnetocaloric effects in Ni-Mn-In alloys

AU - Zhang, Xuexi

AU - Qian, Mingfang

AU - Su, Ruizhe

AU - Geng, Lin

PY - 2016/1/15

Y1 - 2016/1/15

N2 - The room-temperature magnetocaloric effects (MCE) in polycrystalline Ni47.74Mn37.06In15.20 alloy were investigated. The magnetic-field-induced phase transformation from martensite to austenite phase was confirmed. Both inverse and conventional magnetocaloric effects were attained at a magnetic field up to 50,000 Oe. The inverse magnetic entropy change (ΔSm) reaches 30.7 J/kg K around 282 K at 50,000 Oe due to the martensite to austenite first order transformation. Furthermore, the conventional ΔSm reaches -6.45 J/kg K around 294 K at 50,000 Oe related to the austenitic ferromagnetic to paramagnetic second order magnetic transition. The giant inverse and conventional magnetocaloric effects co-occur in a wide temperature range 267.5-297.5 K. This makes ternary Ni47.74Mn37.06In15.20 alloy a promising room-temperature magnetic refrigerant.

AB - The room-temperature magnetocaloric effects (MCE) in polycrystalline Ni47.74Mn37.06In15.20 alloy were investigated. The magnetic-field-induced phase transformation from martensite to austenite phase was confirmed. Both inverse and conventional magnetocaloric effects were attained at a magnetic field up to 50,000 Oe. The inverse magnetic entropy change (ΔSm) reaches 30.7 J/kg K around 282 K at 50,000 Oe due to the martensite to austenite first order transformation. Furthermore, the conventional ΔSm reaches -6.45 J/kg K around 294 K at 50,000 Oe related to the austenitic ferromagnetic to paramagnetic second order magnetic transition. The giant inverse and conventional magnetocaloric effects co-occur in a wide temperature range 267.5-297.5 K. This makes ternary Ni47.74Mn37.06In15.20 alloy a promising room-temperature magnetic refrigerant.

KW - Magnetic entropy change

KW - Magnetic materials

KW - Magnetocaloric effect (MCE)

KW - Metals and alloys

KW - Ni-Mn-In

KW - Phase transformation

UR - https://www.scopus.com/pages/publications/84946019859

U2 - 10.1016/j.matlet.2015.10.076

DO - 10.1016/j.matlet.2015.10.076

M3 - 文章

AN - SCOPUS:84946019859

SN - 0167-577X

VL - 163

SP - 274

EP - 276

JO - Materials Letters

JF - Materials Letters

ER -

Giant room-temperature inverse and conventional magnetocaloric effects in Ni-Mn-In alloys

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this