ABSTRACT In this work, samples of zirconium alloys Zr1Nb and Zircaloy-4W were subjected to two-stage oxidation experiments – at first in H2 16O solution and then in H2 18O steam. Raman spectroscopy was used to analyse distribution of 18O isotope in corrosion layers of the alloys. Layered distribution of 18O was observed in case of Zr1Nb samples; Zircaloy-4W had 18O present only at metal/oxide interface. This observation is attributed to differing kinetic transitions, which influence transport of oxygen through oxide layer.

中文翻译：

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使用 18O 示踪剂对锆合金氧化层的拉曼研究

摘要 在这项工作中，锆合金 Zr1Nb 和 Zircaloy-4W 样品进行了两阶段氧化实验——首先在 H2 16O 溶液中，然后在 H2 18O 蒸汽中。拉曼光谱用于分析合金腐蚀层中 18O 同位素的分布。在 Zr1Nb 样品中观察到 18O 的层状分布；Zircaloy-4W 仅在金属/氧化物界面上存在 18O。这种观察归因于不同的动力学转变，这影响了氧通过氧化物层的传输。