Low-field magnetocaloric effect of NdFe11Ti and SmFe10V2 compounds

To substitute NdFeB in many fields, the 1–12 phase is actively studied. That’s the reason why magnetic and magnetocaloric properties of ThMn 12 have been investigated. NdFe 11 Ti and SmFe 10 V 2 were synthesized form bulk materials by arc melting and reduced into a powder by high energy ball milling...

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Bibliographic Details
Published in:Journal of materials science. Materials in electronics 2021-04, Vol.32 (8), p.10579-10586
Main Authors: Bouzidi, W., Bartoli, T., Sedek, R., Bouzidi, A., Moscovici, J., Bessais, L.
Format: Article
Language:English
Subjects:
Annealing furnaces
Ball milling
Characterization and Evaluation of Materials
Chemistry and Materials Science
Crystallization
Electric arc melting
Heat pumps
Magnetic properties
Materials Science
Optical and Electronic Materials
Phase transitions
Physics
Temperature
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Summary:To substitute NdFeB in many fields, the 1–12 phase is actively studied. That’s the reason why magnetic and magnetocaloric properties of ThMn 12 have been investigated. NdFe 11 Ti and SmFe 10 V 2 were synthesized form bulk materials by arc melting and reduced into a powder by high energy ball milling to obtained a nanometric powder. Then, the powder was annealed in a furnace at different temperatures to crystallize the phase. Rietveld refinement showed that these two alloys crystallized in a ThMn 12 tetragonal structure which can be described by the I 4/ mmm space group. We found T C = 552 K , μ 0 H C = 1.2 × 10 - 2 T , R C P = 42 J.kg - 1 for NdFe 11 Ti and T C = 603 K , μ 0 H C = 0.4 T , R C P = 46 J.kg - 1 for SmFe 10 V 2 . It can be assumed that SmFe 10 V 2 is a hard magnet but not NdFe 11 Ti , both could be used as heat-pump.
ISSN:0957-4522
1573-482X
DOI:10.1007/s10854-021-05713-z