Mechanism of atmospheric corrosion of copper in the presence of submicron ammonium sulfate particles at 300 and 373 K

• Published in: Journal of the Electrochemical Society Vol. 141; no. 11; pp. 2935 - 2941
• Main Authors: LOBNIG, R. E, FRANKENTHAL, R. P, SICONOLFI, D. J, SINCLAIR, J. D, STRATMANN, M
• Format: Journal Article
• Language: English
• Published: Pennington, NJ Electrochemical Society 01.11.1994
• Subjects: 360105 - Metals & Alloys- Corrosion & Erosion; AIR POLLUTION; AMMONIUM COMPOUNDS; AMMONIUM SULFATES; Applied sciences; CHALCOGENIDES; CHEMICAL REACTION KINETICS; CHEMICAL REACTIONS; COPPER; COPPER COMPOUNDS; COPPER HYDROXIDES; COPPER OXIDES; COPPER SULFATES; CORROSION; Corrosion mechanisms; CORROSION PRODUCTS; CORROSIVE EFFECTS; DUSTS; ELEMENTS; Exact sciences and technology; HYDRATES; HYDROGEN COMPOUNDS; HYDROXIDES; KINETICS; MATERIALS SCIENCE; METALS; Metals. Metallurgy; OXIDES; OXYGEN COMPOUNDS; POLLUTION; REACTION KINETICS; SULFATES; SULFUR COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; TRANSITION ELEMENTS; URBAN AREAS; Fourier transformation; Infrared absorption; Temperature effect; Transition metal; Experimental study; Corrosion product; Submicron particle; Time dependence; Ammonium sulfate; Optical microscopy; Precipitation; Humidity; pH; Oxidation; SEM; Copper; Atmospheric corrosion

The corrosion mechanism of copper at 373 and 300 K in the presence of submicron (NH[sub 4])[sub 2]SO[sub 4] particle deposits has been investigated. Several in situ techniques have been used to monitor the corrosion process in real time. At and above the critical relative humidity of (NH[sub 4])[sub...