Enthalpy of formation of Al–Fe–Si alloys II (τ 6, τ 2, τ 3, τ 8, τ 4)

Abstract

The enthalpy of formation has been determined for the Al –Fe–Si solid solution phases τ 6, τ 2, τ 3, τ 8, τ 4 with a Tian–Calvet calorimeter (Setaram), by dissolution in an aluminium bath at 800°C (1073 K). The single-phase alloys were prepared by levitation melting followed by annealing. All alloys were investigated by X-ray diffraction and their precise composition was determined by atomic absorption spectrometry.