利用离子束技术研究辐照下空气及其相对湿度对铁腐蚀的耦合作用
Use ion beam techniques to study the coupling between air and its relative humidity on iron corrosion under irradiation
摘要：
本文以核废料地质处置为背景，研究了辐照条件下空气的湿度对铁腐蚀的影响。辐照实验在室温下进行，使用3 MeV的提取质子束与10 nA的强度。研究了不同的大气：相对湿度（RH）固定在45%的潮湿空气、干燥空气和$^{15}N\_2$大气（45% RH）。分别用弹性反冲分析（ERDA）和卢瑟福背散射光谱（RBS）测量了与大气接触的铁表面的氢和氧分布。从这些实验清楚地表明，O $\_2$ +H $\_2$ O的偶联增强了铁的氧化，而对于铁的氢化，无论气氛如何，湿度都是足够的。给出的解释，这是基于反应机制和空气电离形成的物种。
英文摘要：
In this paper, the role of air humidity on the iron corrosion under irradiation is studied in the context of geological disposal of nuclear wastes. The irradiation experiments are performed at room temperature using a 3 MeV extracted proton beam with a 10 nA intensity. Different atmospheres are studied: Humid air with a relative humidity (RH) fixed at 45 %, dry air and a $^{15}N\_2$ atmosphere (45% RH). The hydrogen and oxygen distribution profiles at the iron surface in contact with atmosphere are measured by using respectively ERDA (Elastic Recoil Detection Analysis) and RBS (Rutherford Backscattering Spectrometry) analysis. From these experiments it is clearly demonstrated that the coupling of O$\_2$+H$\_2$O enhances iron oxidation whereas for iron hydrogenation, humidity is sufficient whatever the atmosphere. An interpretation is given, which is based on the reaction mechanisms and the species formed by air ionisation.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
