Investigation of the multicaloric properties in spark plasma sintered NiMnCoTi alloys
Multicaloric Shape Memory Alloys (SMA) attract considerable scientific and technological interest nowadays as core materials for developing new solutions for solid-state cooling. The NiMnCoTi system is a ferromagnetic SMA that combines the caloric effect due to pseudoelastic deformation and magnetic...
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Elsevier
2025-05-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785425013432 |
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| author | F. Villa E. Villa F. Passaretti M. López-Cruz J.L. Sánchez Llamazares |
| author_facet | F. Villa E. Villa F. Passaretti M. López-Cruz J.L. Sánchez Llamazares |
| author_sort | F. Villa |
| collection | DOAJ |
| description | Multicaloric Shape Memory Alloys (SMA) attract considerable scientific and technological interest nowadays as core materials for developing new solutions for solid-state cooling. The NiMnCoTi system is a ferromagnetic SMA that combines the caloric effect due to pseudoelastic deformation and magnetic field application. The efficiency of these two effects, related to grain structure for mechanical properties and induction of Thermoelastic Martensitic Transformation (TMT), is optimized by an appropriate microstructure. Therefore, among different preparation routes that may lead to defined shapes for practical use, Spark Plasma Sintering (SPS) is a promising preparation process. In this work, a Ni37.5Mn35Co12.5Ti15 (at. %) alloy, obtained by SPS is considered to investigate its multicaloric response base on the elastocaloric and magnetocaloric effects linked to the first-order martensitic-like structural transformation. Elastocaloric ΔTad of about 3.7 K for an uniaxial stress of 550 MPa and magnetocaloric ΔSmag of 19–22 J/kgK at 5 T are obtained. Moreover, new measurements of ΔTad with the elastic and magnetic field coupling are carried out. The application of the two fields simultaneously induces a significant ΔTad increase of about 36 %. The improvement of elastocaloric efficiency by magnetic field application was demonstrated at different strains values. |
| format | Article |
| id | doaj-art-eebfd0d39b5640518d6e4b9d4c87181d |
| institution | OA Journals |
| issn | 2238-7854 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Elsevier |
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| series | Journal of Materials Research and Technology |
| spelling | doaj-art-eebfd0d39b5640518d6e4b9d4c87181d2025-08-20T02:26:59ZengElsevierJournal of Materials Research and Technology2238-78542025-05-01369342934810.1016/j.jmrt.2025.05.187Investigation of the multicaloric properties in spark plasma sintered NiMnCoTi alloysF. Villa0E. Villa1F. Passaretti2M. López-Cruz3J.L. Sánchez Llamazares4CNR ICMATE Unit of Lecco, Via G. Previati 1/E, 23900, Lecco, ItalyCNR ICMATE Unit of Lecco, Via G. Previati 1/E, 23900, Lecco, Italy; Corresponding author.CNR ICMATE Unit of Lecco, Via G. Previati 1/E, 23900, Lecco, ItalyInstituto Potosino de Investigación Científica y Tecnológica A.C., Camino a la Presa San José 2055, Col. Lomas 4a, San Luis Potosí, S.L.P., 78216, MexicoInstituto Potosino de Investigación Científica y Tecnológica A.C., Camino a la Presa San José 2055, Col. Lomas 4a, San Luis Potosí, S.L.P., 78216, Mexico; Corresponding author.Multicaloric Shape Memory Alloys (SMA) attract considerable scientific and technological interest nowadays as core materials for developing new solutions for solid-state cooling. The NiMnCoTi system is a ferromagnetic SMA that combines the caloric effect due to pseudoelastic deformation and magnetic field application. The efficiency of these two effects, related to grain structure for mechanical properties and induction of Thermoelastic Martensitic Transformation (TMT), is optimized by an appropriate microstructure. Therefore, among different preparation routes that may lead to defined shapes for practical use, Spark Plasma Sintering (SPS) is a promising preparation process. In this work, a Ni37.5Mn35Co12.5Ti15 (at. %) alloy, obtained by SPS is considered to investigate its multicaloric response base on the elastocaloric and magnetocaloric effects linked to the first-order martensitic-like structural transformation. Elastocaloric ΔTad of about 3.7 K for an uniaxial stress of 550 MPa and magnetocaloric ΔSmag of 19–22 J/kgK at 5 T are obtained. Moreover, new measurements of ΔTad with the elastic and magnetic field coupling are carried out. The application of the two fields simultaneously induces a significant ΔTad increase of about 36 %. The improvement of elastocaloric efficiency by magnetic field application was demonstrated at different strains values.http://www.sciencedirect.com/science/article/pii/S2238785425013432All-d-metal Ni–Mn–Ti–Co alloysSpark plasma sinteringElastocaloric effectMagnetocaloric effectMagneto-mechanical coupling |
| spellingShingle | F. Villa E. Villa F. Passaretti M. López-Cruz J.L. Sánchez Llamazares Investigation of the multicaloric properties in spark plasma sintered NiMnCoTi alloys Journal of Materials Research and Technology All-d-metal Ni–Mn–Ti–Co alloys Spark plasma sintering Elastocaloric effect Magnetocaloric effect Magneto-mechanical coupling |
| title | Investigation of the multicaloric properties in spark plasma sintered NiMnCoTi alloys |
| title_full | Investigation of the multicaloric properties in spark plasma sintered NiMnCoTi alloys |
| title_fullStr | Investigation of the multicaloric properties in spark plasma sintered NiMnCoTi alloys |
| title_full_unstemmed | Investigation of the multicaloric properties in spark plasma sintered NiMnCoTi alloys |
| title_short | Investigation of the multicaloric properties in spark plasma sintered NiMnCoTi alloys |
| title_sort | investigation of the multicaloric properties in spark plasma sintered nimncoti alloys |
| topic | All-d-metal Ni–Mn–Ti–Co alloys Spark plasma sintering Elastocaloric effect Magnetocaloric effect Magneto-mechanical coupling |
| url | http://www.sciencedirect.com/science/article/pii/S2238785425013432 |
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