1 - 6 of 6 articles
A new experimental study of Sb-Te, based on long term annealed samples homogenized by intermediate powdering and re-annealing of the pressed powder pellets was performed. More than 25 samples were prepared, covering the entire composition range between 0 and 60 at.% Te. This part of the phase...
The Nb-Zr system was reassessed based on calculated theoretical data and available thermodynamic and phase equilibria data. The Gibbs energies of the bcc and hcp solid phases were described using cluster expansion and cluster variation methods (CE–CVM) to model short-range ordering (SRO) in the...
The melting point of pure Cr and phase equilibria in the Cr-Si binary system were determined by thermal analysis using a differential scanning calorimeter (DSC) and differential thermal analyzer (DTA). In addition, the composition of two-phase alloys was analyzed using an electron probe...
The Co-Cu-Sn ternary system has been modeled based on reported phase equilibrium data in the literature using the CALPHAD (CALculation of PHAse Diagrams) method. The excess Gibbs energies of solution phases, including liquid, Bcc, Fcc and Hcp, are expressed by the Redlich-Kister polynomial. The...
The splitting of γ′ (Ni3Al and Ni3Si) precipitates in five binary Ni-Al alloys and one Ni-Si alloy is reviewed in the context of phase equilibrium. Two mechanisms are considered: Purely Elastic (PE) splitting, driven solely by competition between elastic and interfacial free energies;...
CALPHAD-type theoretical assessment of the Pb-Se-Sn system was carried out. This assessment is part of a larger project aimed at developing an Ag-Pb-Se-Sn-Te thermodynamic database which should serve for the development of materials for thermoelectric applications. The experimental results from...
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