INFRARED REFLECTION STUDIES OF THE OXIDATION OF COPPER AND THE INHIBITION BY BENZOTRIAZOLE.

Abstract

High-sensitivity infrared reflection spectra were used to analyze the structure and thickness of oxide films on copper mirror and the corrosion protective films formed on metal by benzotriazole. Infrared oxide band intensities were found to be directly proportional to the oxide film thicknesses over the range of several tens to several thousands of angstrom. Even in the case where the surface film is composed of more than two compounds, the film thickness of each compound can be determined by this method.