Thermodynamic description of the interaction processes in the Cu–Ce–O system in the temperature range 1100–1300°C
- Авторы: Samoilova O.1, Mikhailov G.1, Makrovets L.1, Trofimov E.1
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Учреждения:
- South Ural State University (National Research University)
- Выпуск: Том 2017, № 3 (2017)
- Страницы: 209-215
- Раздел: Article
- URL: https://journals.rcsi.science/0036-0295/article/view/171352
- DOI: https://doi.org/10.1134/S0036029517030120
- ID: 171352
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Аннотация
A thermodynamic simulation and an experimental study of the interaction between cerium and oxygen in liquid copper have been performed. The thermodynamic analysis of the interaction processes in the Cu–Ce–O system is carried out using the technique of constructing the surface of solubility of components in a metal in the temperature range 1100–1300°C. As a result of simulation, data on changes in the Gibbs energy ΔGT° and the equilibrium constants of formation of cerium oxides Ce2O3 and CeO2 from the components of a copper-based metallic melt are obtained. The first-order interaction parameters (according to Wagner) of cerium and oxygen dissolved in liquid copper, namely, eCeCe, eOCe, and eCeO, are evaluated. Experimental studies of the Cu–Ce–O system have been performed. The morphological features, the size, and the composition of nonmetallic inclusions formed as a result of interaction in the Cu–Ce–O system are studied using scanning electron microscopy and electron-probe microanalysis.
Об авторах
O. Samoilova
South Ural State University (National Research University)
Автор, ответственный за переписку.
Email: samoylova_o@mail.ru
Россия, Chelyabinsk, Zlatoust, 454080
G. Mikhailov
South Ural State University (National Research University)
Email: samoylova_o@mail.ru
Россия, Chelyabinsk, Zlatoust, 454080
L. Makrovets
South Ural State University (National Research University)
Email: samoylova_o@mail.ru
Россия, Chelyabinsk, Zlatoust, 454080
E. Trofimov
South Ural State University (National Research University)
Email: samoylova_o@mail.ru
Россия, Chelyabinsk, Zlatoust, 454080
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