caa a22 4500 463231856 CHVBK 20180405153244.0 cr unu---uuuuu 170326e20071201xx s 000 0 eng 10.1007/s10853-007-1964-4 doi (NATIONALLICENCE)springer-10.1007/s10853-007-1964-4 Characterization of atmospheric corrosion products of zinc exposed to SO2 and NO2 using XPS and GIXD [Elektronische Daten] [Juan Castaño, Carlos Arroyave, Manuel Morcillo] A complete characterization of corrosion products formed on zinc plates after exposure in a climatic chamber was conducted in this study. The dry deposition of NO2, SO2, and SO2+NO2, at 25°C and 35°C, and relative humidity (RH) of 90% was simulated. Pollutant concentrations evaluated were selected to represent highly polluted industrial atmospheric levels. Analysis techniques included X-ray Photoelectron Spectroscopy (XPS) and Grazing Incidence X-ray Diffraction (GIXD). For tests conducted at 25°C, the relative amount of sulfate was determined to be higher in the SO2+NO2 atmosphere than in the SO2 atmosphere, and was associated with greater corrosivity in the former atmosphere. NO2 had an indirect role as a catalyst for SO2 reduction to sulfate, as evidenced by the greater proportion of sulfate ions detected and the lack of nitrogen compounds in corrosion products. At 35°C, effect of NO2 was reduced, and was complicated by a greater tendency for drying so that it was more difficult to maintain the humidity layer. Therefore, no accelerating effect of exposure temperature was observed. Springer Science+Business Media, LLC, 2007 Castaño Juan Corrosion and Protection Group, Department of Materials Engineering, Universidad de Antioquia, P.O. Box 1226, Medellin, Colombia aut Arroyave Carlos Corrosion and Protection Group, Department of Materials Engineering, Universidad de Antioquia, P.O. Box 1226, Medellin, Colombia aut Morcillo Manuel National Center for Metallurgical Research - CENIM, Avda. Gregorio del Amo 8, 28040, Madrid, Spain aut Journal of Materials Science Springer US; http://www.springer-ny.com 42/23(2007-12-01), 9654-9662 0022-2461 42:23<9654 2007 42 10853 https://doi.org/10.1007/s10853-007-1964-4 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-007-1964-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Castaño Juan Corrosion and Protection Group, Department of Materials Engineering, Universidad de Antioquia, P.O. Box 1226, Medellin, Colombia aut NATIONALLICENCE 700 1- Arroyave Carlos Corrosion and Protection Group, Department of Materials Engineering, Universidad de Antioquia, P.O. Box 1226, Medellin, Colombia aut NATIONALLICENCE 700 1- Morcillo Manuel National Center for Metallurgical Research - CENIM, Avda. Gregorio del Amo 8, 28040, Madrid, Spain aut NATIONALLICENCE 773 0- Journal of Materials Science Springer US; http://www.springer-ny.com 42/23(2007-12-01), 9654-9662 0022-2461 42:23<9654 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer