Enthalpy of formation of Al-Fe-Si alloys (tau(5),tau(10),tau(1),tau(9))

In order to optimise the phase equilibrium of the ternary system Al-Fe-Si i t is necessary to use thermodynamic data. In this paper we present the enth alpy of formation of ternary alloys at 298 K. These values were measured wi th a Tian-Calvet colorimeter (Setaram) by dissolution in an aluminium bath at 800 degrees C (1073 K). After levitation melting, the alloys were anneal ed until they were monophasic, they were then checked by X-ray diffraction and the precise composition was determined by atomic absorption spectroscop y. (C) 2000 Elsevier Science S.A. All rights reserved.