The effect of step-like martensitic transformation on the magnetic entropy change of Ni40.6Co8.5Mn40.9Sn10unidirectional crystal grown with the Bridgman-Stockbarger technique

F. Chen; Y. X. Tong; L. Li; J. L. Sánchez Llamazares; C. F. Sánchez-Valdés; P. Müllner

doi:10.1016/j.jallcom.2016.08.240

The effect of step-like martensitic transformation on the magnetic entropy change of Ni_40.6Co_8.5Mn_40.9Sn₁₀unidirectional crystal grown with the Bridgman-Stockbarger technique

F. Chen
, Y. X. Tong
, L. Li
, J. L. Sánchez Llamazares
, C. F. Sánchez-Valdés
, P. Müllner

Micron School of Materials Science and Engineering

Harbin Engineering University
Instituto Potosino de Investigacion Cientifica y Tecnologica
Universidad Nacional Autónoma de México
Universidad Autonoma de Ciudad Juarez

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

28 Scopus citations

Abstract

We report a step-like martensitic transformation and its effect on magnetocaloric properties in Ni_40.6Co_8.5Mn_40.9Sn₁₀unidirectional crystal grown using the Bridgman-Stockbarger technique followed by vacuum annealing at 1173 K for 72 h. This alloy undergoes successive first-order phase transitions which are attributed to the monotonic compositional variation along the crystal growth direction; the latter results in the increase of the full-width at half-maximum of the magnetic entropy change as a function of temperature (δT_FWHM). For a magnetic field change of 2 and 5 T, the maximum magnetic entropy change are 9.7 and 16.0 J kg⁻¹K⁻¹with an extended δT_FWHMof 11 and 23 K, respectively. The average hysteresis loss for a field change of 2 T is 19 J kg⁻¹reducing the refrigerant capacity by 17%.

Original language	English
Pages (from-to)	269-274
Number of pages	6
Journal	Journal of Alloys and Compounds
Volume	691
DOIs	https://doi.org/10.1016/j.jallcom.2016.08.240
State	Published - 2017

Keywords

Ferromagnetic shape memory alloy
Magnetic entropy change
Magnetic hysteresis losses
Ni-Co-Mn-Sn
Step-like martensitic transformation

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Chen, F., Tong, Y. X., Li, L., Sánchez Llamazares, J. L., Sánchez-Valdés, C. F., & Müllner, P. (2017). The effect of step-like martensitic transformation on the magnetic entropy change of Ni_40.6Co_8.5Mn_40.9Sn₁₀unidirectional crystal grown with the Bridgman-Stockbarger technique. Journal of Alloys and Compounds, 691, 269-274. https://doi.org/10.1016/j.jallcom.2016.08.240

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title = "The effect of step-like martensitic transformation on the magnetic entropy change of Ni40.6Co8.5Mn40.9Sn10unidirectional crystal grown with the Bridgman-Stockbarger technique",

abstract = "We report a step-like martensitic transformation and its effect on magnetocaloric properties in Ni40.6Co8.5Mn40.9Sn10unidirectional crystal grown using the Bridgman-Stockbarger technique followed by vacuum annealing at 1173 K for 72 h. This alloy undergoes successive first-order phase transitions which are attributed to the monotonic compositional variation along the crystal growth direction; the latter results in the increase of the full-width at half-maximum of the magnetic entropy change as a function of temperature (δTFWHM). For a magnetic field change of 2 and 5 T, the maximum magnetic entropy change are 9.7 and 16.0 J kg−1K−1with an extended δTFWHMof 11 and 23 K, respectively. The average hysteresis loss for a field change of 2 T is 19 J kg−1reducing the refrigerant capacity by 17\%.",

keywords = "Ferromagnetic shape memory alloy, Magnetic entropy change, Magnetic hysteresis losses, Ni-Co-Mn-Sn, Step-like martensitic transformation",

author = "F. Chen and Tong, \{Y. X.\} and L. Li and \{S{\'a}nchez Llamazares\}, \{J. L.\} and S{\'a}nchez-Vald{\'e}s, \{C. F.\} and P. M{\"u}llner",

note = "Publisher Copyright: {\textcopyright} 2016 Elsevier B.V.",

year = "2017",

doi = "10.1016/j.jallcom.2016.08.240",

language = "English",

volume = "691",

pages = "269--274",

}

Chen, F, Tong, YX, Li, L, Sánchez Llamazares, JL, Sánchez-Valdés, CF & Müllner, P 2017, 'The effect of step-like martensitic transformation on the magnetic entropy change of Ni_40.6Co_8.5Mn_40.9Sn₁₀unidirectional crystal grown with the Bridgman-Stockbarger technique', Journal of Alloys and Compounds, vol. 691, pp. 269-274. https://doi.org/10.1016/j.jallcom.2016.08.240

TY - JOUR

T1 - The effect of step-like martensitic transformation on the magnetic entropy change of Ni40.6Co8.5Mn40.9Sn10unidirectional crystal grown with the Bridgman-Stockbarger technique

AU - Chen, F.

AU - Tong, Y. X.

AU - Li, L.

AU - Sánchez Llamazares, J. L.

AU - Sánchez-Valdés, C. F.

AU - Müllner, P.

PY - 2017

Y1 - 2017

N2 - We report a step-like martensitic transformation and its effect on magnetocaloric properties in Ni40.6Co8.5Mn40.9Sn10unidirectional crystal grown using the Bridgman-Stockbarger technique followed by vacuum annealing at 1173 K for 72 h. This alloy undergoes successive first-order phase transitions which are attributed to the monotonic compositional variation along the crystal growth direction; the latter results in the increase of the full-width at half-maximum of the magnetic entropy change as a function of temperature (δTFWHM). For a magnetic field change of 2 and 5 T, the maximum magnetic entropy change are 9.7 and 16.0 J kg−1K−1with an extended δTFWHMof 11 and 23 K, respectively. The average hysteresis loss for a field change of 2 T is 19 J kg−1reducing the refrigerant capacity by 17%.

AB - We report a step-like martensitic transformation and its effect on magnetocaloric properties in Ni40.6Co8.5Mn40.9Sn10unidirectional crystal grown using the Bridgman-Stockbarger technique followed by vacuum annealing at 1173 K for 72 h. This alloy undergoes successive first-order phase transitions which are attributed to the monotonic compositional variation along the crystal growth direction; the latter results in the increase of the full-width at half-maximum of the magnetic entropy change as a function of temperature (δTFWHM). For a magnetic field change of 2 and 5 T, the maximum magnetic entropy change are 9.7 and 16.0 J kg−1K−1with an extended δTFWHMof 11 and 23 K, respectively. The average hysteresis loss for a field change of 2 T is 19 J kg−1reducing the refrigerant capacity by 17%.

KW - Ferromagnetic shape memory alloy

KW - Magnetic entropy change

KW - Magnetic hysteresis losses

KW - Ni-Co-Mn-Sn

KW - Step-like martensitic transformation

UR - https://www.scopus.com/pages/publications/84985910571

U2 - 10.1016/j.jallcom.2016.08.240

DO - 10.1016/j.jallcom.2016.08.240

M3 - Article

AN - SCOPUS:84985910571

SN - 0925-8388

VL - 691

SP - 269

EP - 274

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

ER -

The effect of step-like martensitic transformation on the magnetic entropy change of Ni_40.6Co_8.5Mn_40.9Sn₁₀unidirectional crystal grown with the Bridgman-Stockbarger technique

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