Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Vaporization and thermodynamic properties of ceramics based on SrO-Al₂O₃-SiO₂ system. / Балабанова, Екатерина Александровна; Тюрнина, Наталья Геральдовна; Лопатин, Сергей Игоревич; Тюрнина, Зоя Геральдовна; Шугуров, Сергей Михайлович; Барабанов, Никита Максимович.
в: Journal of the American Ceramic Society, Том 108, № 12, e70197, 01.12.2025.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Vaporization and thermodynamic properties of ceramics based on SrO-Al₂O₃-SiO₂ system.
AU - Балабанова, Екатерина Александровна
AU - Тюрнина, Наталья Геральдовна
AU - Лопатин, Сергей Игоревич
AU - Тюрнина, Зоя Геральдовна
AU - Шугуров, Сергей Михайлович
AU - Барабанов, Никита Максимович
PY - 2025/12/1
Y1 - 2025/12/1
N2 - The vaporization behavior and thermodynamic properties of the SrO–Al2O3–SiO2 system were investigated by Knudsen effusion mass spectrometry (KEMS) across a composition range of 10–90 mol.% SrO and Al2O3/SiO2 molar ratios of 0.5, 1.0, and 1.5. Experiments were conducted at the temperature 2000 K using a tungsten twin effusion cell to measure partial pressures of gaseous species (Sr, SiO, O2) and derive component activities, Gibbs energies, and excess Gibbs energies. The system exhibited slight negative deviations from ideality, indicative of synergistic interactions among SrO, Al2O3, and SiO2. Compositions with 50–60 mol.% SrO demonstrated minimized evaporation rates and enhanced thermodynamic stability, attributed to the formation of stable Sr–Al–Si–O phases. These findings provide critical insights for designing high-temperature ceramics for aerospace applications, where thermal resilience and low volatility under extreme conditions are paramount.
AB - The vaporization behavior and thermodynamic properties of the SrO–Al2O3–SiO2 system were investigated by Knudsen effusion mass spectrometry (KEMS) across a composition range of 10–90 mol.% SrO and Al2O3/SiO2 molar ratios of 0.5, 1.0, and 1.5. Experiments were conducted at the temperature 2000 K using a tungsten twin effusion cell to measure partial pressures of gaseous species (Sr, SiO, O2) and derive component activities, Gibbs energies, and excess Gibbs energies. The system exhibited slight negative deviations from ideality, indicative of synergistic interactions among SrO, Al2O3, and SiO2. Compositions with 50–60 mol.% SrO demonstrated minimized evaporation rates and enhanced thermodynamic stability, attributed to the formation of stable Sr–Al–Si–O phases. These findings provide critical insights for designing high-temperature ceramics for aerospace applications, where thermal resilience and low volatility under extreme conditions are paramount.
KW - Knudsen effusion mass spectrometry
KW - SrO–Al2O3–SiO2
KW - high-temperature ceramics
KW - thermodynamic stability
KW - vaporization
UR - https://www.mendeley.com/catalogue/100a4e05-7ceb-312c-a53a-5c456681eb70/
U2 - 10.1111/jace.70197
DO - 10.1111/jace.70197
M3 - Article
VL - 108
JO - Journal of the American Ceramic Society
JF - Journal of the American Ceramic Society
SN - 0002-7820
IS - 12
M1 - e70197
ER -
ID: 140931855