Density and viscosity of ternary Al–Cu–Si liquid alloys
Density and viscosity of ternary Al–Cu–Si liquid alloys
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DOI：
10.1007/s10853-014-8072-z
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发表时间：
2013-06
影响因子：
4.5
通讯作者：
H. Kobatake;J. Schmitz;J. Brillo
中科院分区：
文献类型：
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作者：
H. Kobatake;J. Schmitz;J. Brillo
研究了三元Al-Cu-Si液态合金在较宽温度和成分范围内的密度和粘度。使用电磁悬浮作为无容器技术测量密度，而通过高温振荡杯粘度计测量粘度。在此三元体系中，二元相互作用参数以及第三（三元）相互作用参数需要考虑过量体积来描述液体密度。粘度的温度依赖性很好地描述了由Arcidius定律。粘性流动的激活能的最大值被发现在该组成范围内的金属间化合物相存在于固态。
Densities and viscosities of ternary Al–Cu–Si liquid alloys have been investigated over a wide temperature and composition range. Density was measured using electromagnetic levitation as a container-less technique, while viscosity was measured by means of a high-temperature oscillating cup viscometer. In this ternary system, binary interaction parameters as well as a third (ternary) interaction parameter need to be taken into account for the excess volume to describe the liquid densities. The temperature dependences of the viscosities are well described by the Arrhenius law. A maximum of the activation energy of viscous flow is found in that compositional range in which intermetallic phases exist in the solid state.