Determination of the Excess Thermodynamic Functions in Ternary Cs2O—SiO2‐Na2O Melts by Knudsen Effusion Mass Spectrometry
| Autor: | C. Bergman, R. Chastel, J.-P. Coutures, J.-C. Mathieu, F. Bennour |
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| Rok vydání: | 1996 |
| Předmět: |
Ternary numeral system
Chemistry Enthalpy Thermodynamics Entropy of mixing Condensed Matter Physics Mass spectrometry Mole fraction Electronic Optical and Magnetic Materials Gibbs free energy symbols.namesake Phase (matter) Materials Chemistry symbols Knudsen number Physical and Theoretical Chemistry |
| Zdroj: | Physics and Chemistry of Liquids. 33:229-248 |
| ISSN: | 1029-0451 0031-9104 |
| DOI: | 10.1080/00319109608039824 |
| Popis: | The enthalpy and the free enthalpy of formation of the melts in the system Cs 2 O-SiO 2 -Na 2 O are measured by mass spectrometry coupled with a Knudsen effusion cell. The measurements are performed through four quasi-binary sections at the constant SiO 2 molar fraction 0.5, 0.667, 0.75 and 0.85 in the temperature range (950-1600 K) using the intensity ratio method. Some phase limits have been determined. The thermodynamic behaviour of the melt is characterised by a slightly negative deviation from ideality and a symmetrical effect between Na and Cs regarding to SiO 2 . |
| Databáze: | OpenAIRE |
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