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http://hdl.handle.net/2445/192131
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DC Field | Value | Language |
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dc.contributor.author | Gottschall, Tino | - |
dc.contributor.author | Gràcia Condal, Adrià | - |
dc.contributor.author | Fries, Maximilian | - |
dc.contributor.author | Taublel, A. | - |
dc.contributor.author | Pfeuffer, L. | - |
dc.contributor.author | Mañosa, Lluís | - |
dc.contributor.author | Planes Vila, Antoni | - |
dc.contributor.author | Skokov, K.P. | - |
dc.contributor.author | Gutfleisch, O. | - |
dc.date.accessioned | 2023-01-12T16:35:54Z | - |
dc.date.available | 2023-01-12T16:35:54Z | - |
dc.date.issued | 2018 | - |
dc.identifier.issn | 1476-1122 | - |
dc.identifier.uri | http://hdl.handle.net/2445/192131 | - |
dc.description.abstract | The giant magnetocaloric effect, in which large thermal changes are induced in a material on the application of a magnetic field, can be used for refrigeration applications, such as the cooling of systems from a small to a relatively large scale. However, commercial uptake is limited. We propose an approach to magnetic cooling that rejects the conventional idea that the hysteresis inherent in magnetostructural phase-change materials must be minimized to maximize the reversible magnetocaloric effect. Instead, we introduce a second stimulus, uniaxial stress, so that we can exploit the hysteresis. This allows us to lock-in the ferromagnetic phase as the magnetizing field is removed, which drastically removes the volume of the magnetic field source and so reduces the amount of expensive Nd-Fe-B permanent magnets needed for a magnetic refrigerator. In addition, the mass ratio between the magnetocaloric material and the permanent magnet can be increased, which allows scaling of the cooling power of a device simply by increasing the refrigerant body. The technical feasibility of this hysteresis-positive approach is demonstrated using Ni-Mn-In Heusler alloys. Our study could le | - |
dc.format.extent | 6 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | Nature Publishing Group | - |
dc.relation.isformatof | Versió postprint del document publicat a: https://doi.org/10.1038/s41563-018-0166-6 | - |
dc.relation.ispartof | Nature Materials, 2018, vol. 17, p. 929-934 | - |
dc.relation.uri | https://doi.org/10.1038/s41563-018-0166-6 | - |
dc.rights | (c) Gottschall, Tino et al., 2018 | - |
dc.source | Articles publicats en revistes (Física de la Matèria Condensada) | - |
dc.subject.classification | Histèresi | - |
dc.subject.classification | Propietats magnètiques | - |
dc.subject.classification | Ciència dels materials | - |
dc.subject.other | Hysteresis | - |
dc.subject.other | Magnetic properties | - |
dc.subject.other | Materials science | - |
dc.title | A multicaloric cooling cycle that exploits thermal hysteresis | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/acceptedVersion | - |
dc.identifier.idgrec | 685400 | - |
dc.date.updated | 2023-01-12T16:35:54Z | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Física de la Matèria Condensada) |
Files in This Item:
File | Description | Size | Format | |
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685400.pdf | 5.17 MB | Adobe PDF | View/Open |
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