Kinetics and mechanism of interaction of aluminum and magnesium of Al-Mg-Bi ternary system with water |
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Authors: | L F Kozin S V Volkov S G Goncharenko V V Permyakov B I Danil’tsev |
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Affiliation: | 1.Vernadsky Institute of General and Inorganic Chemistry of Ukrainian National Academy of Sciences,Kiev,Ukraine;2.Institute of Geological Sciences of Ukrainian National Academy of Sciences,Kiev,Ukraine |
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Abstract: | The kinetics and mechanism of interaction of aluminum and magnesium of an Al-Mg-Bi ternary system with water were obtained
using the method of high-temperature volumetry at high pressures and temperatures of 225–325°C. The kinetic parameters of
the reaction, i.e., the rate constant, activation energy, and degree of conversion, were calculated and the mechanism of corrosion
dissolution of activated by bismuth aluminum and magnesium in water with the release of hydrogen at high rates was suggested.
The kinetic parameters during the interaction of aluminum activated by bismuth and magnesium in boehmite (AlOOH), and magnesium
hydroxide (Mg(OH)2) with water with the release of hydrogen at a rate of 3196–4033 l/(m2 min) in the investigated temperature range were determined. The nanostructured particles of Al-Mg-Bi alloys were detected
using a JSM6490 LV electron microscope (Japan). |
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