Thermodynamic modeling of Al–Si nanoalloy phase diagram

Abstract

Al-Si alloys is formulated using Butler equation and with the help of Redlich-Kister polynomials, excess Gibbs-free energy of nanoparticles in Al-Si system has been calculated considering particle size as 2 and 10 nm. Calculated results extend the thermodynamic information about the Al-Si system from bulk to nanomaterials. With the decrease of particle diameter, change in thermodynamic properties of the Al-Si system has been observed. Also, reduction in eutectic temperature, eutectic composition, and melting temperature of the constituents were observed. Liquidus and solidus boundaries of Al-Si phase diagram are also shift towards the lower temperature.

Thermodynamic modelling of Ag-Si nano phase diagram including shape effect

“…A modified CALPHAD method, suggested by Monji and Jabbareh [12] has been study to examine how nanoparticle surface energy is affected by particle size. For calculating the size-based nanoalloy phase diagrams for various systems described in the literature [13], [14] the CALPHAD method is the preferable methodology.…”