High-temperature mass spectrometric study of the thermodynamic properties of the CaO-Al{sub 2}O{sub 3}-SiO{sub 2} system
Journal Article
·
· High Temperature and Materials Science
OSTI ID:538291
- Russian Academy of Sciences, St. Petersburg (Russian Federation). Inst. of Silicate Chemistry
Using the Knudsen effusion mass spectrometric method, the composition of vapor and the partial pressures of vapor species over melts of the CaO-Al{sub 2}O{sub 3}-SiO{sub 2} system were studied for the temperature range 1,833--2,033 K. Thermodynamic functions for the CaO-Al{sub 2}O{sub 3}-SiO{sub 2} system were obtained, and negative deviations from the ideal behavior were illustrated. The dependence of the Gibbs energies of formation of the CaO-Al{sub 2}O{sub 3}-SiO{sub 2} system on concentration of components was suggested. Vaporization processes and thermodynamic properties of the CaO-Al{sub 2}O{sub 3}-SiO{sub 2} system have great importance in every stage of the so-called materials cycle of obtaining the raw materials, metals extraction and refinement, conversion to basic product materials (crystals, ceramics, coatings), and disposal of used products.
- OSTI ID:
- 538291
- Journal Information:
- High Temperature and Materials Science, Journal Name: High Temperature and Materials Science Journal Issue: 1 Vol. 36; ISSN 1080-1278; ISSN HTMSFP
- Country of Publication:
- United States
- Language:
- English
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