Abstract The aluminium-gallium system exhibits many unique properties, but not enough work has been dedicated to its properties in the liquid state. This study deals with the thermophysical properties of binary Al-Ga alloys on the Ga-rich side of the phase diagram, and aims at a better understanding of its thermophysical properties, including surface properties. The density, viscosity and surface tension of six compositions were analysed using the discharge crucible method. Al-Ga alloys with 0.82, 5, 10, 20, 30, 40 wt.% of Al were prepared and measured in the 323-923 K temperature range. Moreover, the mentioned properties have been modelled by a variety of mathematical models. The density decreases with increased aluminium content. The viscosity and surface tension increases with higher Al amounts. Additionally, models such as Brillo and Egry were used to calculate the theoretical density, the Moelywen-Hughes, Kucharski, Kozlov, Romanov and Petrov, and Gąsior were used in the case of viscosity. The modelling of surface tension was achieved using the ideal model proposed by Egry, and the Butler model. The experimental results showed good agreement with the mentioned models.

中文翻译：

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富镓铝镓合金的密度、粘度和表面张力

摘要 铝镓系统表现出许多独特的性质，但对其液态性质的研究还不够。本研究涉及相图富 Ga 侧的二元 Al-Ga 合金的热物理特性，旨在更好地了解其热物理特性，包括表面特性。使用放电坩埚法分析了六种组合物的密度、粘度和表面张力。制备含有 0.82、5、10、20、30、40 wt.% Al 的 Al-Ga 合金，并在 323-923 K 温度范围内进行测量。此外，上述特性已通过各种数学模型进行建模。密度随着铝含量的增加而降低。粘度和表面张力随着铝含量的增加而增加。此外，理论密度采用Brillo、Egry等模型计算，粘度采用Moelywen-Hughes、Kucharski、Kozlov、Romanov和Petrov、Gąsior等模型计算。表面张力的建模是使用 Egry 提出的理想模型和 Butler 模型实现的。实验结果表明与上述模型具有良好的一致性。