Print Email Facebook Twitter Combined effect of annealing temperature and vanadium substitution for mangetocaloric Mn1.2-xVxFe0.75P0.5Si0.5 alloys Title Combined effect of annealing temperature and vanadium substitution for mangetocaloric Mn1.2-xVxFe0.75P0.5Si0.5 alloys Author Lai, J. (TU Delft RST/Fundamental Aspects of Materials and Energy; South China University of Technology) Huang, B. (TU Delft QRD/Kouwenhoven Lab; TU Delft RST/Fundamental Aspects of Materials and Energy; South China University of Technology) Miao, X.F. (TU Delft RST/Fundamental Aspects of Materials and Energy; Nanjing University of Science and Technology) Nguyên, V.T. (TU Delft RST/Fundamental Aspects of Materials and Energy; Quy Nhon University) You, X. (TU Delft RST/Fundamental Aspects of Materials and Energy) Maschek, M. (TU Delft RST/Fundamental Aspects of Materials and Energy) van Eijck, L. (TU Delft RST/Neutron and Positron Methods in Materials) Zeng, D. (South China University of Technology) van Dijk, N.H. (TU Delft RST/Fundamental Aspects of Materials and Energy) Brück, E.H. (TU Delft RST/Fundamental Aspects of Materials and Energy) Date 2019 Abstract Approaching the border of the first order transition and second order transition is significant to optimize the giant magnetocaloric materials performance. The influence of vanadium substitution in the Mn1.2-xVxFe0.75P0.5Si0.5 alloys is investigated for annealing temperatures of 1323, 1373 and 1423 K. By tuning both the annealing temperature and the V substitution simultaneously, the magnetocaloric effect can be enhanced without enlarging the thermal hysteresis near the border of the first to second order transition. Neutron diffraction measurements reveal the changes of site occupation and interatomic distances caused by varying the annealing temperature and V substitution. The properties of the alloy with x = 0.02 annealed at 1323 K is comparable to those found for the MnFe0.95P0.595Si0.33B0.075 alloy, illustrating that Mn1.2-xVxFe0.75P0.5Si0.5 alloys are excellent materials for magnetic heat-pumping near room temperature. Subject EntropyMagnetic propertiesMagnetocaloricMn, V, Fe) (P, Si)Neutron diffraction To reference this document use: http://resolver.tudelft.nl/uuid:a38964e9-9774-4e17-870a-7acdee8cd4c5 DOI https://doi.org/10.1016/j.jallcom.2019.06.239 ISSN 0925-8388 Source Journal of Alloys and Compounds, 803, 671-677 Part of collection Institutional Repository Document type journal article Rights © 2019 J. Lai, B. Huang, X.F. Miao, V.T. Nguyên, X. You, M. Maschek, L. van Eijck, D. Zeng, N.H. van Dijk, E.H. Brück Files PDF 1_s2.0_S0925838819323230_main.pdf 2.37 MB Close viewer /islandora/object/uuid:a38964e9-9774-4e17-870a-7acdee8cd4c5/datastream/OBJ/view