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

Sun, Zheng; Li, Linfeng; Cheng, Xiaomin; Zhu, Jiaoqun; Li, Yuanyuan; Zhou, Weibing

doi:10.3390/ma14123296

Open AccessArticle

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

by

Zheng Sun

,

Linfeng Li

,

Xiaomin Cheng

^*,

Jiaoqun Zhu

,

Yuanyuan Li

and

Weibing Zhou

School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China

^*

Author to whom correspondence should be addressed.

Materials 2021, 14(12), 3296; https://doi.org/10.3390/ma14123296

Submission received: 17 March 2021 / Revised: 25 May 2021 / Accepted: 28 May 2021 / Published: 15 June 2021

(This article belongs to the Special Issue Advanced Materials for Thermal Energy Storage)

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Abstract

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.

Keywords: magnesium-based alloy; latent heat storage; high temperature PCM; thermal reliability

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MDPI and ACS Style

Sun, Z.; Li, L.; Cheng, X.; Zhu, J.; Li, Y.; Zhou, W. Thermal Properties and the Prospects of Thermal Energy Storage of Mg–25%Cu–15%Zn Eutectic Alloy as Phase Change Material. Materials 2021, 14, 3296. https://doi.org/10.3390/ma14123296

AMA Style

Sun Z, Li L, Cheng X, Zhu J, Li Y, Zhou W. Thermal Properties and the Prospects of Thermal Energy Storage of Mg–25%Cu–15%Zn Eutectic Alloy as Phase Change Material. Materials. 2021; 14(12):3296. https://doi.org/10.3390/ma14123296

Chicago/Turabian Style

Sun, Zheng, Linfeng Li, Xiaomin Cheng, Jiaoqun Zhu, Yuanyuan Li, and Weibing Zhou. 2021. "Thermal Properties and the Prospects of Thermal Energy Storage of Mg–25%Cu–15%Zn Eutectic Alloy as Phase Change Material" Materials 14, no. 12: 3296. https://doi.org/10.3390/ma14123296

APA Style

Sun, Z., Li, L., Cheng, X., Zhu, J., Li, Y., & Zhou, W. (2021). Thermal Properties and the Prospects of Thermal Energy Storage of Mg–25%Cu–15%Zn Eutectic Alloy as Phase Change Material. Materials, 14(12), 3296. https://doi.org/10.3390/ma14123296

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

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