Compositional and thermophysical study of Al–Si- and Zn–Al–Mg-based eutectic alloys for latent heat storage

IF 1.6 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

High Temperature Materials and Processes Pub Date : 2023-01-01 DOI:10.1515/htmp-2022-0269

Y. Kageyama, Kazuki Morita

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引用次数: 2

Abstract

Abstract In this study, the eutectic temperature and latent heat of Al–Si- and Zn–Al–Mg-based eutectic alloys were determined using differential thermal analysis (DTA) and differential scanning calorimetry measurements in order to identify eutectic alloys for latent heat storage in the eutectic temperature ranges of 450–550 and 300–350°C. First, the eutectic compositions of the Al–Si–Cu–Mg–Zn and Zn–Al–Mg–Sn alloys were identified using scanning electron microscopy with energy-dispersive X-ray spectroscopy and DTA in two steps. In the second step, metallographic analysis was repeated until a uniform eutectic microstructure was obtained. Thermophysical analysis revealed that the eutectic temperatures of several types of Al–Si- and Zn–Al–Mg-based eutectic alloys were within the targeted temperature ranges with relatively high latent heat. These results confirmed that Al–Si- and Zn–Al–Mg-based eutectic alloys have suitable properties as phase change materials for use in the 300–350 and 450–550°C temperature ranges.

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用于潜热储存的Al–Si和Zn–Al–Mg基共晶合金的成分和热物理研究

摘要本研究采用差热分析(DTA)和差扫描量热法测定了Al-Si基和zn - al - mg基共晶合金的共晶温度和潜热，以确定在共晶温度450 ~ 550℃和300 ~ 350℃范围内具有潜热储存能力的共晶合金。首先，利用扫描电镜、能谱和差热分析分两步鉴定了Al-Si-Cu-Mg-Zn和Zn-Al-Mg-Sn合金的共晶成分。在第二步中，重复金相分析，直到获得均匀的共晶组织。热物理分析表明，几种Al-Si基和zn - al - mg基共晶合金的共晶温度均在目标温度范围内，且潜热较高。这些结果证实了Al-Si和zn - al - mg基共晶合金在300-350°C和450-550°C温度范围内具有合适的相变材料性能。

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来源期刊

High Temperature Materials and Processes 工程技术-材料科学：综合

CiteScore

2.50

自引率

0.00%

发文量

审稿时长

3.9 months

期刊介绍： High Temperature Materials and Processes offers an international publication forum for new ideas, insights and results related to high-temperature materials and processes in science and technology. The journal publishes original research papers and short communications addressing topics at the forefront of high-temperature materials research including processing of various materials at high temperatures. Occasionally, reviews of a specific topic are included. The journal also publishes special issues featuring ongoing research programs as well as symposia of high-temperature materials and processes, and other related research activities. Emphasis is placed on the multi-disciplinary nature of high-temperature materials and processes for various materials in a variety of states. Such a nature of the journal will help readers who wish to become acquainted with related subjects by obtaining information of various aspects of high-temperature materials research. The increasing spread of information on these subjects will also help to shed light on relevant topics of high-temperature materials and processes outside of readers’ own core specialties.