Library
local_library Home Repository

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

Journal Article (2019)
Author(s)

Jiawei Lai (TU Delft - RST/Fundamental Aspects of Materials and Energy, South China University of Technology)

Bowei Huang (TU Delft - RST/Fundamental Aspects of Materials and Energy, South China University of Technology, TU Delft - QRD/Kouwenhoven Lab)

Xuefei Miao (Nanjing University of Science and Technology, TU Delft - RST/Fundamental Aspects of Materials and Energy)

Nguyen Van Thang (TU Delft - RST/Fundamental Aspects of Materials and Energy, Quy Nhon University)

Xinmin You (TU Delft - RST/Fundamental Aspects of Materials and Energy)

Michael Maschek (TU Delft - RST/Fundamental Aspects of Materials and Energy)

Lambert van Eijck (TU Delft - RST/Neutron and Positron Methods in Materials)

Dechang Zeng (South China University of Technology)

Niels van Dijk (TU Delft - RST/Fundamental Aspects of Materials and Energy)

Ekkes Brück (TU Delft - RST/Fundamental Aspects of Materials and Energy)

Research Group
RST/Fundamental Aspects of Materials and Energy
DOI related publication
https://doi.org/10.1016/j.jallcom.2019.06.239
More Info
expand_more
Publication Year
2019
Language
English
Research Group
RST/Fundamental Aspects of Materials and Energy
Volume number
803
Pages (from-to)
671-677
Reuse Rights

Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.

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.