Abstract
In order to optimise the phase equilibrium of the ternary system Al–Fe–Si it is necessary to use thermodynamic data. In this paper we present the enthalpy of formation of ternary alloys at 298 K. These values were measured with a Tian-Calvet calorimeter (Setaram) by dissolution in an aluminium bath at 800°C (1073 K). After levitation melting, the alloys were annealed until they were monophasic, they were then checked by X-ray diffraction and the precise composition was determined by atomic absorption spectroscopy.
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