Low-field-actuated giant magnetocaloric effect and excellent mechanical properties in a NiMn-based multiferroic alloy

doi:10.1016/j.actamat.2017.12.047

Title: Low-field-actuated giant magnetocaloric effect and excellent mechanical properties in a NiMn-based multiferroic alloy

Abstract

Multiferroic magnetic shape memory alloys with first-order magntostructural transformation exhibit much enhanced magnetocaloric effect which incorporates the latent heat associated with the phase transformation itself, but they suffer from the drawbacks of large hysteresis and transformation interval and consequently too high critical field to actuate the magnetocaloric effect, greatly impeding their applications. Here, by generating a kind of specific stacking-mediated structure of martensite through minor Al substitution to improve the geometric compatibility between martensite and austenite in the Ni ₄₀Co ₁₀Mn ₄₀Sn ₉Al ₁ alloy, we greatly reduced the thermal hysteresis and transformation temperature interval while conserving the large magnetization difference between the two phases. Consequently, a low-field-actuated giant magnetocaloric effect with isothermal entropy change of 23 J kg ^–1 K ^–1 for a field change from 0 to 2 T, which is among the highest values reported heretofore for all magnetocaloric materials, was successfully achieved. Meanwhile, with minor Al substitution, the present single-phase multiferroic alloy that is intermetallic in nature exhibits superior mechanical properties, including excellent compressive properties over a wide temperature range and a relatively high fracture toughness, which are quite beneficial for practical applications. Lastly, by incorporating the advantages of low cost, environment friendliness and easy fabrication,more »« less

Authors:

Cong, D. Y. ^[1]; Huang, L. ^[1]; Hardy, V. ^[2]; Bourgault, D. ^[3]; Sun, X. M. ^[1]; Nie, Z. H. ^[4]; Wang, M. G. ^[5]; Ren, Y. ^[6]; Entel, P. ^[7]; Wang, Y. D. ^[1]

Univ. of Science and Technology Beijing, Beijing (People's Republic of China)
Normandie Univ., Caen (France)
Institut Neel, Grenoble Cedex (France)
Beijing Institute of Technology, Beijing (People's Republic of China)
Northeastern Univ., Shenyang (People's Republic of China)
Argonne National Lab. (ANL), Argonne, IL (United States)
Univ. of Duisburg-Essen, Duisburg (Germany)

Publication Date:: 2018-01-09

Research Org.:: Argonne National Lab. (ANL), Argonne, IL (United States)

Sponsoring Org.:: National Natural Science Foundation of China (NNSFC); Fundamental Research Funds for the Central Universities; Agence Nationale de la recherche (ANR); Chinese Academy of Sciences (CAS), State Key Laboratory for Advanced Metals and Materials; USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)

OSTI Identifier:: 1466371

Grant/Contract Number:: AC02-06CH11357

Resource Type:: Journal Article: Accepted Manuscript

Journal Name:: Acta Materialia

Additional Journal Information:: Journal Volume: 146; Journal Issue: C; Journal ID: ISSN 1359-6454

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; hysteresis; magnetic shape memory alloy; magnetocaloric effect; magnetostructural transformation; martensitic transformation

Citation Formats


                    Cong, D. Y., Huang, L., Hardy, V., Bourgault, D., Sun, X. M., Nie, Z. H., Wang, M. G., Ren, Y., Entel, P., and Wang, Y. D. Low-field-actuated giant magnetocaloric effect and excellent mechanical properties in a NiMn-based multiferroic alloy.  United States: N. p., 2018. 
        Web.  doi:10.1016/j.actamat.2017.12.047.

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                    Cong, D. Y., Huang, L., Hardy, V., Bourgault, D., Sun, X. M., Nie, Z. H., Wang, M. G., Ren, Y., Entel, P., & Wang, Y. D. Low-field-actuated giant magnetocaloric effect and excellent mechanical properties in a NiMn-based multiferroic alloy.  United States.  doi:10.1016/j.actamat.2017.12.047.

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                    Cong, D. Y., Huang, L., Hardy, V., Bourgault, D., Sun, X. M., Nie, Z. H., Wang, M. G., Ren, Y., Entel, P., and Wang, Y. D. Tue .  
        "Low-field-actuated giant magnetocaloric effect and excellent mechanical properties in a NiMn-based multiferroic alloy".  United States.  doi:10.1016/j.actamat.2017.12.047.  https://www.osti.gov/servlets/purl/1466371.

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@article{osti_1466371,

  title        = {Low-field-actuated giant magnetocaloric effect and excellent mechanical properties in a NiMn-based multiferroic alloy},

  author       = {Cong, D. Y. and Huang, L. and Hardy, V. and Bourgault, D. and Sun, X. M. and Nie, Z. H. and Wang, M. G. and Ren, Y. and Entel, P. and Wang, Y. D.},

  abstractNote = {Multiferroic magnetic shape memory alloys with first-order magntostructural transformation exhibit much enhanced magnetocaloric effect which incorporates the latent heat associated with the phase transformation itself, but they suffer from the drawbacks of large hysteresis and transformation interval and consequently too high critical field to actuate the magnetocaloric effect, greatly impeding their applications. Here, by generating a kind of specific stacking-mediated structure of martensite through minor Al substitution to improve the geometric compatibility between martensite and austenite in the Ni40Co10Mn40Sn9Al1 alloy, we greatly reduced the thermal hysteresis and transformation temperature interval while conserving the large magnetization difference between the two phases. Consequently, a low-field-actuated giant magnetocaloric effect with isothermal entropy change of 23 J kg–1 K–1 for a field change from 0 to 2 T, which is among the highest values reported heretofore for all magnetocaloric materials, was successfully achieved. Meanwhile, with minor Al substitution, the present single-phase multiferroic alloy that is intermetallic in nature exhibits superior mechanical properties, including excellent compressive properties over a wide temperature range and a relatively high fracture toughness, which are quite beneficial for practical applications. Lastly, by incorporating the advantages of low cost, environment friendliness and easy fabrication, this alloy shows great potential for magnetocaloric applications.},

  doi          = {10.1016/j.actamat.2017.12.047},

  journal      = {Acta Materialia},

  issn         = {1359-6454},

  number       = C,

  volume       = 146,

  place        = {United States},

  year         = {2018},

  month        = {1}

}

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Journal Article:

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DOI: 10.1016/j.actamat.2017.12.047

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Cited by: 15 works

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Figures / Tables:

Fig. 1: (a) $M(T)$ curves recorded under 2 T for Ni₄₀Co₁₀Mn₄₀Sn₁₀ and Ni₄₀Co₁₀Mn₄₀Sn₉Al₁, respectively. (b) M(T) curves recorded under 0.01 T, 2 T, 4 T and 7 T, respectively, for Ni₄₀Co₁₀Mn₄₀Sn₉Al₁.

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