Combined effect of annealing temperature and vanadium substitution for mangetocaloric Mn1.2-xVxFe0.75P0.5Si0.5 alloys

Jiawei Lai; Bowei Huang; Xuefei Miao; Nguyen Van Thang; Xinmin You; Michael Maschek; Lambert van Eijck; Dechang Zeng; Niels van Dijk; Ekkes Brück

doi:10.1016/j.jallcom.2019.06.239

Combined effect of annealing temperature and vanadium substitution for mangetocaloric Mn_1.2-xV_xFe_0.75P_0.5Si_0.5 alloys

Jiawei Lai^*, Bowei Huang, Xuefei Miao, Nguyen Van Thang, Xinmin You, Michael Maschek, Lambert van Eijck, Dechang Zeng, Niels van Dijk, Ekkes Brück

^*Corresponding author for this work

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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 Mn_1.2-xV_xFe_0.75P_0.5Si_0.5 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 MnFe_0.95P_0.595Si_0.33B_0.075 alloy, illustrating that Mn_1.2-xV_xFe_0.75P_0.5Si_0.5 alloys are excellent materials for magnetic heat-pumping near room temperature.

Original language	English
Pages (from-to)	671-677
Journal	Journal of Alloys and Compounds
Volume	803
DOIs	https://doi.org/10.1016/j.jallcom.2019.06.239
Publication status	Published - 2019

Keywords

Entropy
Magnetic properties
Magnetocaloric
Mn, V, Fe) (P, Si)
Neutron diffraction

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10.1016/j.jallcom.2019.06.239

1-s2.0-S0925838819323230-mainFinal published version, 2.25 MBLicence: CC BY

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@article{a38964e997744e17870a7acdee8cd4c5,

title = "Combined effect of annealing temperature and vanadium substitution for mangetocaloric Mn1.2-xVxFe0.75P0.5Si0.5 alloys",

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.",

keywords = "Entropy, Magnetic properties, Magnetocaloric, Mn, V, Fe) (P, Si), Neutron diffraction",

author = "Jiawei Lai and Bowei Huang and Xuefei Miao and {Van Thang}, Nguyen and Xinmin You and Michael Maschek and {van Eijck}, Lambert and Dechang Zeng and {van Dijk}, Niels and Ekkes Br{\"u}ck",

year = "2019",

doi = "10.1016/j.jallcom.2019.06.239",

language = "English",

volume = "803",

pages = "671--677",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier",

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TY - JOUR

T1 - Combined effect of annealing temperature and vanadium substitution for mangetocaloric Mn1.2-xVxFe0.75P0.5Si0.5 alloys

AU - Lai, Jiawei

AU - Huang, Bowei

AU - Miao, Xuefei

AU - Van Thang, Nguyen

AU - You, Xinmin

AU - Maschek, Michael

AU - van Eijck, Lambert

AU - Zeng, Dechang

AU - van Dijk, Niels

AU - Brück, Ekkes

PY - 2019

Y1 - 2019

N2 - 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.

AB - 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.

KW - Entropy

KW - Magnetic properties

KW - Magnetocaloric

KW - Mn, V, Fe) (P, Si)

KW - Neutron diffraction

UR - http://www.scopus.com/inward/record.url?scp=85068053342&partnerID=8YFLogxK

U2 - 10.1016/j.jallcom.2019.06.239

DO - 10.1016/j.jallcom.2019.06.239

M3 - Article

AN - SCOPUS:85068053342

SN - 0925-8388

VL - 803

SP - 671

EP - 677

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

ER -

Combined effect of annealing temperature and vanadium substitution for mangetocaloric Mn_1.2-xV_xFe_0.75P_0.5Si_0.5 alloys

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