The Radiation Oxidation of Aluminum in Contact with Water

N. N. Gadzhieva

Institute of Radiation Problems, Azerbaijan National Academy of Sciences,
pr. G. Dzhavida 31a, Baku, AZ 1143 Azerbaijan;
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Received October 10, 2005

Abstract — The aluminum oxidation in the aluminum–water system under the action of radiation is studied using the radiothermoluminescence and IR-reflection absorption spectroscopy methods. The specific features of the radiothermoluminescence peaks observed in a 100–250 K temperature range (the activation energy E_a = 0.38–0.65 eV) corroborate the significance role of superficial oxygen hole-type centers and chemisorbed oxygen in the oxide film formation. Based on the dose dependence of the chemisorbed oxygen thermal quenching, the kinetics of aluminum radiative oxidation and its chemisorptive passivation are revealed. The oxide film formation and the heterogeneity of its structure are traced using the IR-reflection spectra. A possible scheme of the radiation oxidation of aluminum in the aluminum–water system is suggested.

PACS numbers: 81.45.Bb

DOI: 10.1134/S003317320704011X