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Diffusion couple experiments for the Mg–Gd and Mg–Y systems were performed with Mg single crystals to investigate the anisotropic diffusion behavior of Gd and Y in hexagonal close packed (hcp) Mg at temperatures between 703 and 803K (430 and 530°C). Diffusion coefficients for both Gd and Y along the basal plane of hcp Mg are approximately three times higher than those along the normal direction of...
The Al–La, Al–Ce, Al–Pr, Al–Nd and Al–Sm (Al–light rare earth) binary systems have been systematically assessed and optimized based on the available experimental data and ab-initio data using the FactSage thermodynamic software. Optimized model parameters of the Gibbs energies for all phases which reproduced all the reliable experimental data to satisfaction have been obtained. The optimization procedure...
The Al–Gd, Al–Tb, Al–Dy, Al–Ho and Al–Er (Al–heavy rare earths) binary systems have been systematically assessed and optimized based on the available experimental data and ab-initio data using the FactSage thermodynamic software. A systematic technique (reduced melting temperature proposed by Gschneidner) was used for estimating the Al–Tb phase diagram due to lack of experimental data. Optimized model...
Critical evaluations and thermodynamic optimizations of the manganese–sulfur binary system and iron–manganese–sulfur ternary systems have been carried out over the entire composition range from room temperature to above the liquidus temperature. The Gibbs energies of all available phases have been thermodynamically modeled, and model parameters have been optimized in order to reproduce all available...
A complete review, critical evaluation, and thermodynamic optimization of the phase equilibrium and thermodynamic properties of the MnO–“ TiO 2 ”–“ Ti 2 O 3 ” systems at 1 bar pressure are presented. The molten oxide phase was described by the Modified Quasichemical Model. The Gibbs energy of spinel, pyrophanite and pseudobrookite solid solutions were modeled using the Compound...
A complete review, critical evaluation, and thermodynamic optimization of phase equilibrium and thermodynamic properties of the MnO–SiO 2 –“ TiO 2 ”–“ Ti 2 O 3 ” systems at 1 bar pressure are presented. The molten oxide phase was described by the Modified Quasichemical Model. The Gibbs energies of the manganosite, spinel, pyrophanite and pseudobrookite and rutile solid...
A complete critical evaluation and thermodynamic modeling of the phase diagrams and thermodynamic properties of oxide phases in the Fe-Co-O system is presented. Optimized equations for the thermodynamic properties of oxide phases are obtained which reproduce all available thermodynamic and phase equilibrium data within experimental error limits from 25 o C to above the liquidus temperatures...
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