Influence of the preliminary radiation-oxidation treatment of zirconium on the radiation-heterogeneous processes in the Zr + H2O System

Abstract

The oxidation processes are studied of untreated and radiation-oxidation preliminary treated (in an H 2 O 2 solution at room temperature) zirconium specimens in contact with water by reflection-absorption infrared spectroscopy. A comparison is performed of their kinetic characteristics. Passivation of the metal surface is revealed as evidence of the surface oxide layer.

Oxidation and Accumulation of H2 in the Aluminum-Water System Under the Radiation-Thermal Action

“…H 2 O system. We used the experimental data obtained upon the radiation-thermal and thermal transformations of H 2 O in the given system at temperatures of 300-900 K [3]. The dependences of changes in the concentration Fig.…”

“…The molecular hydrogen (H 2 ) yield under heterogeneous radiolysis of H 2 O in the presence of Al was determined chromatographically ("Gazokhrom 3101"). The small thicknesses of oxide films were estimated by the Strohmeier formula [9] as applied to the X-ray-photoelectron spectra [10] (Hewlett Packard "VG ESCALAB" electron spectrometer), and the relatively large thicknesses were determined by the gravimetric method [3]. The oxide film thickness thereby was from 8 nm to 0.6 µm.…”