Magnetocaloric behavior of Mn rich Ni46Cu2Mn43In11 alloy

Mayukh K. Ray; I. M. Obaidat; Sangam Banerjee

doi:10.1088/1757-899X/305/1/012011

Magnetocaloric behavior of Mn rich Ni₄₆Cu₂Mn₄₃In₁₁ alloy

Mayukh K. Ray, I. M. Obaidat, Sangam Banerjee

Department of Physics

Research output: Contribution to journal › Conference article › peer-review

Abstract

In this work, we studied the magnetic entropy change (ΔS_M) across the martensite transformation (MT) in Mn-rich Ni₄₆Cu₂Mn₄₃ln₁₁ alloy. This compound undergoes a MT and a magnetic phase transition around the temperatures (T_M=) 272 K and (T_CA=) 325 K, respectively. A large field induced shift (=0.28 K/kOe) of the MT temperatures is observed. An application of magnetic field (H =) of 50 kOe causes a large ΔS_M of 20 J/kg-K and-4.4 J/kg-K around T_M and T_CA, respectively. We also found that the change in magnetic field induced isothermal ΔS_M(H)_T is mainly depends on the induced austenite phase fraction by the applied magnetic field at that temperature. Possible reasons for the observed behaviours are comprehensively discussed.

Original language	English
Article number	012011
Journal	IOP Conference Series: Materials Science and Engineering
Volume	305
Issue number	1
DOIs	https://doi.org/10.1088/1757-899X/305/1/012011
Publication status	Published - Mar 1 2018
Event	2nd International Conference on Advanced Materials, ICAM 2017 - Irbid, Jordan Duration: Jul 10 2017 → Jul 13 2017

Keywords

Huesler
Magnetization
magnetic entropy
phase transition.

ASJC Scopus subject areas

General Materials Science
General Engineering

Access to Document

10.1088/1757-899X/305/1/012011

Cite this

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title = "Magnetocaloric behavior of Mn rich Ni46Cu2Mn43In11 alloy",

abstract = "In this work, we studied the magnetic entropy change (ΔSM) across the martensite transformation (MT) in Mn-rich Ni46Cu2Mn43ln11 alloy. This compound undergoes a MT and a magnetic phase transition around the temperatures (TM=) 272 K and (TCA=) 325 K, respectively. A large field induced shift (=0.28 K/kOe) of the MT temperatures is observed. An application of magnetic field (H =) of 50 kOe causes a large ΔSM of 20 J/kg-K and-4.4 J/kg-K around TM and TCA, respectively. We also found that the change in magnetic field induced isothermal ΔSM(H)T is mainly depends on the induced austenite phase fraction by the applied magnetic field at that temperature. Possible reasons for the observed behaviours are comprehensively discussed.",

keywords = "Huesler, Magnetization, magnetic entropy, phase transition.",

author = "Ray, {Mayukh K.} and Obaidat, {I. M.} and Sangam Banerjee",

note = "Publisher Copyright: {\textcopyright} Published under licence by IOP Publishing Ltd.; 2nd International Conference on Advanced Materials, ICAM 2017 ; Conference date: 10-07-2017 Through 13-07-2017",

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T1 - Magnetocaloric behavior of Mn rich Ni46Cu2Mn43In11 alloy

AU - Ray, Mayukh K.

AU - Obaidat, I. M.

AU - Banerjee, Sangam

N1 - Publisher Copyright: © Published under licence by IOP Publishing Ltd.

PY - 2018/3/1

Y1 - 2018/3/1

N2 - In this work, we studied the magnetic entropy change (ΔSM) across the martensite transformation (MT) in Mn-rich Ni46Cu2Mn43ln11 alloy. This compound undergoes a MT and a magnetic phase transition around the temperatures (TM=) 272 K and (TCA=) 325 K, respectively. A large field induced shift (=0.28 K/kOe) of the MT temperatures is observed. An application of magnetic field (H =) of 50 kOe causes a large ΔSM of 20 J/kg-K and-4.4 J/kg-K around TM and TCA, respectively. We also found that the change in magnetic field induced isothermal ΔSM(H)T is mainly depends on the induced austenite phase fraction by the applied magnetic field at that temperature. Possible reasons for the observed behaviours are comprehensively discussed.

AB - In this work, we studied the magnetic entropy change (ΔSM) across the martensite transformation (MT) in Mn-rich Ni46Cu2Mn43ln11 alloy. This compound undergoes a MT and a magnetic phase transition around the temperatures (TM=) 272 K and (TCA=) 325 K, respectively. A large field induced shift (=0.28 K/kOe) of the MT temperatures is observed. An application of magnetic field (H =) of 50 kOe causes a large ΔSM of 20 J/kg-K and-4.4 J/kg-K around TM and TCA, respectively. We also found that the change in magnetic field induced isothermal ΔSM(H)T is mainly depends on the induced austenite phase fraction by the applied magnetic field at that temperature. Possible reasons for the observed behaviours are comprehensively discussed.

KW - Huesler

KW - Magnetization

KW - magnetic entropy

KW - phase transition.

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