Auger electron spectroscopy (AES) and factor analysis (FA) were applied to study the chemical structure of oxidized brass layers and rubber-to-brass interface of tyre cords. The optimum requirements of sample preparation, instrument performance, data acquisition and analysis were determined to ensure accurate quantitative data. The elemental and chemical depth profiles of oxidized brass layers plated on steel cord and rubber-to-brass interface for standard vukanization techlogy and after ageing were obtained.
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