| Autor: |
Roy, S., Gupta, N., Jat, Ram, Parida, S., Mukerjee, S. |
| Předmět: |
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| Zdroj: |
Oxidation of Metals; Oct2016, Vol. 86 Issue 3/4, p165-177, 13p |
| Abstrakt: |
The isothermal oxidation behavior of UZr and UTi alloys in dry air was studied by thermogravimetric technique in the temperature ranges of 773-848 and 548-623 K, respectively. The oxidation products were found to be UO and ZrO for UZr and UO and TiO for UTi by X-ray diffraction analysis. The oxidation kinetics were found to best fit into linear rate law for both the alloys in the temperature range of investigation and the lowest value of α (0.11 for UZr and 0.12 for UTi), which corresponds to the fraction of completed reaction. The linear rate constants ( k) were evaluated from the oxidation data. The activation energies of oxidation reactions were calculated using the Arrhenius equation and found to be 161 kJ mol for UZr and 88 kJ mol for UTi. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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