Thermodynamic Study of Molten Si-Ti Binary Alloys
| Autor: | Yoshihito Ogasawara, Seyed Hadi Tabaian, Takashi Ikeda, Masafumi Maeda |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2000 |
| Předmět: |
Langmuir
Technology Materials science Silicon Vapor pressure Chemical technology Evaporation chemistry.chemical_element Thermodynamics Crucible Chemicals: Manufacture use etc TP200-248 TP1-1185 Condensed Matter Physics Copper chemistry Mechanics of Materials General Materials Science Vacuum chamber Physical and Theoretical Chemistry Titanium |
| Zdroj: | High Temperature Materials and Processes, Vol 19, Iss 3-4, Pp 257-264 (2000) |
| ISSN: | 2191-0324 0334-6455 |
| Popis: | The thermodynamic properties of the Si-Ti system were studied by the Langmuir effusion method for alloys containing 0 ∼ 58.7mass%Ti. Molten samples were held in a water-cooled copper crucible and heated by power from an electron beam inside a vacuum chamber. Weight changes before and after the evaporation were measured to calculate the rate of evaporation. Evaporating species were also monitored by a mass spectrometer. The vapor pressure of titanium was much lower than that of silicon in the molar composition range of this study. The vapor pressure of silicon was calculated using the Knudsen-Hertz equation. The thermodynamic properties of titanium were calculated by the Gibbs-Duhem equation and integral excess free energy of the Si-Ti system in the above composition range and between 1873-1948K were estimated. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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