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Phase transition and magnetocaloric properties of Mn50Ni42−xCoxSn8 (0 ≤ x ≤ 10) melt-spun ribbons

dc.contributor.authorLi, Zongbin
dc.contributor.authorJiang, Yiwen
dc.contributor.authorLi, Zhenzhuang
dc.contributor.authorSánchez Valdés, Cesar Fidel
dc.contributor.authorSánchez Llamazares, José Luis
dc.contributor.authorYang, Bo
dc.contributor.authorZhang, Yudong
dc.contributor.authorEsling, Claude
dc.contributor.authorZhao, Xiang
dc.contributor.authorZuo, Liang
dc.date.accessioned2019-08-09T22:22:43Z
dc.date.available2019-08-09T22:22:43Z
dc.date.issued2018
dc.identifier.citationLi, Z., Jiang, Y., Li, Z., Sánchez Valdés, C. F., Sánchez Llamazares, J. L., Yang, B., … Zuo, L. (2018). Phase transition and magnetocaloric properties of Mn50Ni42-x Co x Sn8 (0 ? x ? 10) melt-spun ribbons. IUCrJ, 5(Pt 1), 54–66. doi:10.1107/S2052252517016220
dc.identifier.urihttp://hdl.handle.net/11627/5031
dc.description.abstract"The characteristics of magnetostructural coupling play a crucial role in the magnetic field-driven behaviour of magnetofunctional alloys. The availability of magnetostructural coupling over a broad temperature range is of great significance for scientific and technological purposes. This work demonstrates that strong magnetostrucural coupling can be achieved over a wide temperature range (222 to 355?K) in Co-doped high Mn-content Mn50Ni42?xCoxSn8 (0 ? x ? 10) melt-spun ribbons. It is shown that, over a wide composition range with Co content from 3 to 9?at.%, the paramagnetic austenite first transforms into ferromagnetic austenite at T C on cooling, then the ferromagnetic austenite further transforms into a weakly magnetic martensite at T M. Such strong magnetostructural coupling enables the ribbons to exhibit field-induced inverse martensitic transformation behaviour and a large magnetocaloric effect. Under a field change of 5?T, a maximum magnetic entropy change ?S M of 18.6?J?kg?1?K?1 and an effective refrigerant capacity RC eff of up to 178?J?kg?1 can be achieved, which are comparable with or even superior to those of Ni-rich Ni–Mn-based polycrystalline bulk alloys. The combination of high performance and low cost makes Mn–Ni–Co–Sn ribbons of great interest as potential candidates for magnetic refrigeration."
dc.publisherInternational Union of Crystallography
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectMnNi-based alloys
dc.subjectMelt-spun ribbons
dc.subjectMagnetostructural coupling
dc.subjectMagnetocaloric effect
dc.subject.classificationQUÍMICA
dc.titlePhase transition and magnetocaloric properties of Mn50Ni42−xCoxSn8 (0 ≤ x ≤ 10) melt-spun ribbons
dc.typearticle
dc.identifier.doihttps://dx.doi.org/10.1107%2FS2052252517016220
dc.rights.accessAcceso Abierto


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