Thermal Properties and the Prospects of Thermal Energy Storage of Mg–25%Cu–15%Zn Eutectic Alloy as Phase Change Material

This study focuses on the characterization of eutectic alloy, Mg–25%Cu–15%Zn with a phase change temperature of 452.6 °C, as a phase change material (PCM) for thermal energy storage (TES). The phase composition, microstructure, phase change temperature and enthalpy of the alloy were investigated aft...

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Main Authors: Zheng Sun, Linfeng Li, Xiaomin Cheng, Jiaoqun Zhu, Yuanyuan Li, Weibing Zhou
Format: Article
Language:English
Published: MDPI AG 2021-06-01
Series:Materials
Subjects:
Online Access:https://www.mdpi.com/1996-1944/14/12/3296
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author Zheng Sun
Linfeng Li
Xiaomin Cheng
Jiaoqun Zhu
Yuanyuan Li
Weibing Zhou
author_facet Zheng Sun
Linfeng Li
Xiaomin Cheng
Jiaoqun Zhu
Yuanyuan Li
Weibing Zhou
author_sort Zheng Sun
collection DOAJ
description This study focuses on the characterization of eutectic alloy, Mg–25%Cu–15%Zn with a phase change temperature of 452.6 °C, as a phase change material (PCM) for thermal energy storage (TES). The phase composition, microstructure, phase change temperature and enthalpy of the alloy were investigated after 100, 200, 400 and 500 thermal cycles. The results indicate that no considerable phase transformation and structural change occurred, and only a small decrease in phase transition temperature and enthalpy appeared in the alloy after 500 thermal cycles, which implied that the Mg–25%Cu–15%Zn eutectic alloy had thermal reliability with respect to repeated thermal cycling, which can provide a theoretical basis for industrial application. Thermal expansion and thermal conductivity of the alloy between room temperature and melting temperature were also determined. The thermophysical properties demonstrated that the Mg–25%Cu–15%Zn eutectic alloy can be considered a potential PCM for TES.
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spelling doaj.art-167ebff6b2c94ab4ac77743921cf067e2023-11-22T00:06:01ZengMDPI AGMaterials1996-19442021-06-011412329610.3390/ma14123296Thermal Properties and the Prospects of Thermal Energy Storage of Mg–25%Cu–15%Zn Eutectic Alloy as Phase Change MaterialZheng Sun0Linfeng Li1Xiaomin Cheng2Jiaoqun Zhu3Yuanyuan Li4Weibing Zhou5School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, ChinaSchool of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, ChinaSchool of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, ChinaSchool of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, ChinaSchool of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, ChinaSchool of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, ChinaThis study focuses on the characterization of eutectic alloy, Mg–25%Cu–15%Zn with a phase change temperature of 452.6 °C, as a phase change material (PCM) for thermal energy storage (TES). The phase composition, microstructure, phase change temperature and enthalpy of the alloy were investigated after 100, 200, 400 and 500 thermal cycles. The results indicate that no considerable phase transformation and structural change occurred, and only a small decrease in phase transition temperature and enthalpy appeared in the alloy after 500 thermal cycles, which implied that the Mg–25%Cu–15%Zn eutectic alloy had thermal reliability with respect to repeated thermal cycling, which can provide a theoretical basis for industrial application. Thermal expansion and thermal conductivity of the alloy between room temperature and melting temperature were also determined. The thermophysical properties demonstrated that the Mg–25%Cu–15%Zn eutectic alloy can be considered a potential PCM for TES.https://www.mdpi.com/1996-1944/14/12/3296magnesium-based alloylatent heat storagehigh temperature PCMthermal reliability
spellingShingle Zheng Sun
Linfeng Li
Xiaomin Cheng
Jiaoqun Zhu
Yuanyuan Li
Weibing Zhou
Thermal Properties and the Prospects of Thermal Energy Storage of Mg–25%Cu–15%Zn Eutectic Alloy as Phase Change Material
Materials
magnesium-based alloy
latent heat storage
high temperature PCM
thermal reliability
title Thermal Properties and the Prospects of Thermal Energy Storage of Mg–25%Cu–15%Zn Eutectic Alloy as Phase Change Material
title_full Thermal Properties and the Prospects of Thermal Energy Storage of Mg–25%Cu–15%Zn Eutectic Alloy as Phase Change Material
title_fullStr Thermal Properties and the Prospects of Thermal Energy Storage of Mg–25%Cu–15%Zn Eutectic Alloy as Phase Change Material
title_full_unstemmed Thermal Properties and the Prospects of Thermal Energy Storage of Mg–25%Cu–15%Zn Eutectic Alloy as Phase Change Material
title_short Thermal Properties and the Prospects of Thermal Energy Storage of Mg–25%Cu–15%Zn Eutectic Alloy as Phase Change Material
title_sort thermal properties and the prospects of thermal energy storage of mg 25 cu 15 zn eutectic alloy as phase change material
topic magnesium-based alloy
latent heat storage
high temperature PCM
thermal reliability
url https://www.mdpi.com/1996-1944/14/12/3296
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