Kinetics of zirconium oxidation by atomic and molecular oxygen at low pressures

Atomic oxygen treatment effects on magnetron sputtered Zr–Ti binary films

“…Raspopov et al have simulated the reaction of zirconium with molecular and atomic oxygen and reach the result that atomic oxygen have a larger reaction rate and stopping range than molecular oxygen [23]. This calculation agrees with our results on the variation of as-received (molecular oxygen oxidized in ambient atmosphere) and AO treated films.…”

Influence of Pt, Fe/Ni/Cr-containing intermetallics and deuterium on the oxidation of Zr-based materials

“…Enhanced oxidation of Zr-based materials in atomic oxygen enriched gas obtained by microwave discharge has been reported in the literature [9,10]. This shows that increased availability of dissociated oxygen at the oxide/ gas, O/G, interface generates enhanced oxidation.…”

“…This shows that increased availability of dissociated oxygen at the oxide/ gas, O/G, interface generates enhanced oxidation. Raspopov and co-workers [9] suggested that oxygen chemisorption is likely to be a rate-limiting step for the oxidation process at the early stages of oxidation. To understand how the dissociation rate of oxygen influences Zr oxidation at the temperatures relevant for the nuclear industry, we have to consider in which form oxygen is transported through the oxide layer.…”

“…The corrosion behaviour of Zr-based materials has been extensively studied during the last decade with a wide variety of techniques [1][2][3][4][5][6][7][8][9][10]. The role of a surface oxide layer is to protect the metal substrate against the corrosive environment.…”

Influence of Oxygen Dissociation on the Oxidation of Iron

“…7 The samples were placed into a vacuum chamber evacuated by a diffusion pump. The gas flux supplied into the chamber was regulated by a needle valve.…”