Optimization of the Thermodynamic Properties of the Sm2O3–Y2O3–HfO2 System at High Temperatures by the Barker Method

The thermodynamic properties of the Sm 2 O 3 –Y 2 O 3 –HfO 2 system at 2500 K were modeled based on the generalized lattice theory of associated solutions using experimental data obtained by high-temperature mass spectrometry. A comparison was made between the results of the calculations of the ther...

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Veröffentlicht in:Russian journal of inorganic chemistry 2020-05, Vol.65 (5), p.773-780
Hauptverfasser: Shilov, A. L., Stolyarova, V. L., Vorozhtcov, V. A., Lopatin, S. I., Shugurov, S. M.
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container_issue 5
container_start_page 773
container_title Russian journal of inorganic chemistry
container_volume 65
creator Shilov, A. L.
Stolyarova, V. L.
Vorozhtcov, V. A.
Lopatin, S. I.
Shugurov, S. M.
description The thermodynamic properties of the Sm 2 O 3 –Y 2 O 3 –HfO 2 system at 2500 K were modeled based on the generalized lattice theory of associated solutions using experimental data obtained by high-temperature mass spectrometry. A comparison was made between the results of the calculations of the thermodynamic properties of the Sm 2 O 3 –Y 2 O 3 –HfO 2 system using two independent approaches to modeling based on this theory: from the experimental data on the properties of the ternary system and from the data on its boundary binary systems Sm 2 O 3 –Y 2 O 3 , Sm 2 O 3 –HfO 2 , and Y 2 O 3 –HfO 2 . It was shown that the chemical potentials of the components that were calculated in the studied ternary system using the above approaches much better fit the experimental data in the former case.
doi_str_mv 10.1134/S0036023620050216
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subjects Binary systems
Chemistry
Chemistry and Materials Science
Hafnium oxide
High temperature
Inorganic Chemistry
Lattice theory
Mass spectrometry
Optimization
Ternary systems
Thermodynamic properties
Thermodynamics of Inorganic Compounds
Yttrium oxide
title Optimization of the Thermodynamic Properties of the Sm2O3–Y2O3–HfO2 System at High Temperatures by the Barker Method
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