A thermodynamic description of the Si-rich Si-Fe system

Phase equilibria in the Si-rich domain of the Si-Fe system have been reassessed based on the recent DTA experimental results.Thermodynamic properties of liquid phase have been reassessed using the associated solution model.The properties of DIAMOND A4 mixture phase have been added in order to evaluate the phase equilibria for the pure silicon materials.The assessed system is able to reproduce the experimental values in the whole composition range of the Si-Fe system.     

A revised thermodynamic description of the Co-W-C system

A thermodynamic reassessment of the Co-W-C system is presented. New information on the liquid (L)+face-centered cubic (fcc)+graphite+WC and L+fcc+WC+M₆C equilibria has recently been published. Because these equilibria are very important for extrapolation to higher-order systems, the ternary system has been revised. A revision of the Co-W system also has been performed.     

A thermodynamic description of the Pd–Si–C system

The Pd–Si–C system was critically assessed by means of the CALPHAD technique. The solution phases (liquid, face-centered cubic, graphite and diamond) were modeled with the Redlich–Kister equation. The compounds Pd₂₁Si₄, αPd₂Si and βPd₂Si, which have a homogeneity range, were treated as the formulae (Pd, Si)₂₁Si₄, α(Pd, Si)₂Si and β(Pd, Si)₂Si by a 2-sublattice model with Pd and Si on the first sublattice, Si on the second one, respectively. The intermetallic compounds, Pd₅Si, Pd₃Si, Pd₉Si₂, Pd₁₄Si₃, PdSi, Pd₃₉Si₂₀, Pd₁₉Si₁₀, Pd₁₅Si₄ in the Pd–Si system and SiC in the Si–C system were treated as stoichiometric compounds. A set of self-consistent thermodynamic parameters of the Pd–Si–C system was obtained.     

A thermodynamic reassessment of the Al-As-Ga system

The Al-As-Ga system is one of the most important III-V mixed crystal systems because of its advantages as a heterostructure. There are more phase equilibria data available for this system over a wider range of temperatures and compositions, than for any other III-V ternary system. In this paper, the experimental phase diagram data of the Al-As-Ga ternary system have been assessed comprehensively and critically. Especially, the most recent experiments are considered. The interaction parameters of the liquid phase and the semiconductor compound are provided. With the assessed thermodynamic parameters, the pseudobinary AlAs-GaAs phase diagram, the Al-As-Ga ternary isothermal sections, and the solidus isoconcentration curves were calculated and compared with the related experimental data.     

A thermodynamic reassessment of the Al-As-Ga system

The Al-As-Ga system is one of the most important III-V mixed crystal systems because of its advantages as a heterostructure. There are more phase equilibria data available for this system over a wider range of temperatures and compositions, than for any other III-V ternary system. In this paper, the experimental phase diagram data of the Al-As-Ga ternary system have been assessed comprehensively and critically. Especially, the most recent experiments are considered. The interaction parameters of the liquid phase and the semiconductor compound are provided. With the assessed thermodynamic parameters, the pseudobinary AlAs-GaAs phase diagram, the Al-As-Ga ternary isothermal sections, and the solidus isoconcentration curves were calculated and compared with the related experimental data.     

A thermodynamic assessment of the In-As-Sb system

The experimental thermodynamic and phase diagram data of the In-As-Sb ternary system have been critically assessed. With the assessed thermodynamic parameters, the pseudobinary InAs-InSb phase diagram, the isothermal ternary sections and the thermodynamic properties are calculated and compared with the related experimental data.     

A thermodynamic assessment of the Ga-In-P system

The experimental phase diagram data of the Ga-In-P ternary system have been critically assessed. The interaction parameters of the liquid phase and the semiconductor compound are provided. With the assessed thermodynamic parameters, the pseudobinary GaP-InP phase diagram and the Ga-In-P ternary isothermal sections were calculated and compared with the related experimental data.     

A thermodynamic assessment of the Ga-As-Sb system

The experimental phase diagram data of the Ga-As-Sb ternary system have been critically assessed. With the assessed thermodynamic parameters, the pseudobinary GaAs-GaSb phase diagram and the isothermal ternary sections were calculated and compared with the related experimental data.     

A thermodynamic assessment of the Ga-In-P system

The experimental phase diagram data of the Ga-In-P ternary system have been critically assessed. The interaction parameters of the liquid phase and the semiconductor compound are provided. With the assessed thermodynamic parameters, the pseudobinary GaP-InP phase diagram and the Ga-In-P ternary isothermal sections were calculated and compared with the related experimental data.