Density, viscosity and electrical conductivity of hypoeutectic Al-Cu liquid alloys

New workable aluminium-based light alloys are a key issue in current materials science. In this work, thermophysical properties (density, viscosity and electrical conductivity) of liquid Al96Cu4, Al80Cu20, Al70Cu30, and AlCu4TiMg (wt.%) alloys have been measured in a wide temperature range.
The anomalies with respect to the concentration dependence of the electrical conductivity are explained in terms of the s–d hybridization model. A comparison with data and scaling relations being available in the literature is given.