Corrosion and Oxidation Studied by Surface Analytical Methods

通过表面分析方法研究腐蚀和氧化

• 批准号: 9421068
• 负责人: Peter M. Sherwood
• 金额: $ 54.6万
• 依托单位: Kansas State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-03-15 至 2001-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9421068&HistoricalAwards=false
• 关键词: Corrosion; Oxidation; Studied; Surface; Analytical

This research project, supported by the Analytical and Surface Chemistry Program, focusses on the detailed mechanisms of corrosion of iron and aluminum based materials. A variety of surface analytical probes are brought to bear on the atomic level characterization of corrosion films, especially X-ray photoelectron spectroscopy (XPS), analytical electron microscopy, and X-ray diffraction. These methods are used to identify reaction intermediates, and to suggest mechanisms for corrosion of these materials. The use of valence band XPS, in combination with electronic structure calculations to identify specific surface species, provides a unique and very powerful tool for the identification of intermediates and elucidation of mechanisms in these studies. A better understanding of corrosion mechanisms and processes is crucial to the mitigation of corrosion, which is of serious environmental and economic concern. The use of electron spectroscopic tools to identify and characterize corrosion products and processes is the focus of this research project. Corrosion of iron and aluminum based materials is a serious technological problem, impacting the quality of the civil infrastructure and the environment in many ways. A clear understanding of the process of corrosion would be very useful in designing strategies for corrosion inhibition and mitigation.

这项研究项目在分析和表面化学计划的支持下，专注于铁基和铝基材料的详细腐蚀机理。各种表面分析探针被用于腐蚀膜的原子水平表征，特别是X射线光电子能谱(XPS)、分析电子显微镜和X射线衍射。这些方法被用来识别反应中间产物，并提出这些材料的腐蚀机理。价带XPS的使用，结合电子结构计算来确定特定的表面物种，为这些研究中的中间体的识别和机理的阐明提供了一个独特和非常强大的工具。更好地了解腐蚀机理和过程对于缓解腐蚀是至关重要的，这是一个严重的环境和经济问题。使用电子能谱工具来识别和表征腐蚀产物和过程是本研究项目的重点。铁基和铝基材料的腐蚀是一个严重的技术问题，从多个方面影响着民用基础设施的质量和环境。对腐蚀过程有一个清楚的了解，这对设计缓蚀和缓蚀策略非常有用。