Liquid miscibility gap in the Al-Pb-Sn system

The liquid miscibility gap boundary of two immiscible liquids, Al- and Pb-r ich, has been measured in a temperature range between 1073 and 1293 K and a ternary liquid thermodynamic parameter has been evaluated based on experim ental data measured in the present work together with phase equilibrium dat a available in the literature. From these, the phase diagram of the Al-Pb-S n system including the liquid miscibility gap has been calculated using the CALPHAD method. The calculated results are in good agreement with the expe rimental data. (C) 2001 Elsevier Science B.V. All rights reserved.