Chemical processes in the Mo-W-Al2O3 system in vacuum (1 × 10−5 bar)
| Autor: | D. V. Kostomarov, Kh. S. Bagdasarov, E. V. Antonov |
|---|---|
| Rok vydání: | 2012 |
| Předmět: | |
| Zdroj: | Crystallography Reports. 57:595-602 |
| ISSN: | 1562-689X 1063-7745 |
| DOI: | 10.1134/s1063774512030121 |
| Popis: | The behavior of the Mo-W-Al2O3 system at T = 2400 K and P = 1 × 10−5 bar is considered, and the main chemical reactions that implement the oxidation of Mo and W by the products of dissociative evaporation of the melt are determined. The gas-phase composition is calculated for the equimolar ratio of the components of the system, both for the presence and absence of direct contact of W with Al2O3. It is established that in the first case the dominant components of the gas phase are Al and WO3. In the second case, Al and Mo dominate, whereas the WO3 concentration decreases by a factor of about 2.5. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|