Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
High temperature stability in the Cs2O–SrO–Al2O3–SiO2 system. / Новаковский, Вадим Алексеевич; Зверева, Ирина Алексеевна; Шашерина, Анна Юрьевна; Селютин, Артем Александрович; Федорова, Анна Викторовна; Столярова, Валентина Леонидовна; Ворожцов, Виктор Алексеевич; Синельщикова, Ольга Юрьевна.
в: Russian Journal of Physical Chemistry A: Focus on Chemistry, Том 99, № 12, 01.12.2025, стр. 2937-2943.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - High temperature stability in the Cs2O–SrO–Al2O3–SiO2 system
AU - Новаковский, Вадим Алексеевич
AU - Зверева, Ирина Алексеевна
AU - Шашерина, Анна Юрьевна
AU - Селютин, Артем Александрович
AU - Федорова, Анна Викторовна
AU - Столярова, Валентина Леонидовна
AU - Ворожцов, Виктор Алексеевич
AU - Синельщикова, Ольга Юрьевна
PY - 2025/12/1
Y1 - 2025/12/1
N2 - Samples in two ternary Cs2O–Al2O –SiO2 and SrO–Al2O3–SiO2 systems and in the quaternary Cs2O–SrO–Al2O3–SiO2 system were prepared using a solid-phase synthesis method from precursors obtained under hydrothermal conditions. Quantitative elemental analysis was performed by X-ray fluorescence spectroscopy, the phase content was determined by X-ray powder diffraction. A comparative stability analysis was carried out using thermogravimetry up to 1500 оС. The melting temperature was determined by visual polythermal analysis using a high-temperature microscope. Significant difference in thermal stability of the samples depending on the Cs2O content has been observed. Regardless of the ratio of Al2O3:SiO2, the samples with a Cs2O content up to 10 mol. % have the highest thermal stability, with their mass losses being less than 3 %. Higher Cs2O concentration increases the melting point: the samples with the least thermal stability due to the cesium vaporization show the highest liquidus temperature up to 1910 °C
AB - Samples in two ternary Cs2O–Al2O –SiO2 and SrO–Al2O3–SiO2 systems and in the quaternary Cs2O–SrO–Al2O3–SiO2 system were prepared using a solid-phase synthesis method from precursors obtained under hydrothermal conditions. Quantitative elemental analysis was performed by X-ray fluorescence spectroscopy, the phase content was determined by X-ray powder diffraction. A comparative stability analysis was carried out using thermogravimetry up to 1500 оС. The melting temperature was determined by visual polythermal analysis using a high-temperature microscope. Significant difference in thermal stability of the samples depending on the Cs2O content has been observed. Regardless of the ratio of Al2O3:SiO2, the samples with a Cs2O content up to 10 mol. % have the highest thermal stability, with their mass losses being less than 3 %. Higher Cs2O concentration increases the melting point: the samples with the least thermal stability due to the cesium vaporization show the highest liquidus temperature up to 1910 °C
KW - system
KW - melting point
KW - thermal stability
KW - visual polythermal analysis
KW - strontium aluminosilicate
KW - cesium aluminosilicate
KW - TG
KW - Cs2O–SrO–Al2O3–SiO2
KW - cesium aluminosilicate
KW - strontium aluminosilicate
KW - Cs2O–SrO–Al2O3–SiO2 system
KW - thermal stability
KW - melting point
KW - TG
KW - visual polythermal analysis
UR - https://www.mendeley.com/catalogue/5cfe8c1b-08d5-3d9c-9baa-7e837ebecfb4/
U2 - 10.1134/s003602442570236x
DO - 10.1134/s003602442570236x
M3 - Article
VL - 99
SP - 2937
EP - 2943
JO - Russian Journal of Physical Chemistry A
JF - Russian Journal of Physical Chemistry A
SN - 0036-0244
IS - 12
ER -
ID: 141654868