Lead patination in the atmosphere of Athens, Greece

Godelitsas, A; Stamatelos-Samios, N; Kokkoris, M; Chatzitheodoridis, E

dc.contributor.author	Godelitsas, A	en
dc.contributor.author	Stamatelos-Samios, N	en
dc.contributor.author	Kokkoris, M	en
dc.contributor.author	Chatzitheodoridis, E	en
dc.date.accessioned	2014-03-01T02:53:20Z
dc.date.available	2014-03-01T02:53:20Z
dc.date.issued	2011	en
dc.identifier.issn	0168583X	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/36245
dc.subject	Atmosphere	en
dc.subject	Corrosion	en
dc.subject	Lead	en
dc.subject	Nuclear reaction analysis	en
dc.subject	Patination	en
dc.subject	Raman spectroscopy	en
dc.subject.other	Athens , Greece	en
dc.subject.other	Carbonate layers	en
dc.subject.other	Exposure-time	en
dc.subject.other	Hydrocerussite	en
dc.subject.other	Nuclear reaction analysis	en
dc.subject.other	Patination	en
dc.subject.other	Patination process	en
dc.subject.other	SEM-EDS	en
dc.subject.other	Surface carbon	en
dc.subject.other	Surface layers	en
dc.subject.other	Tandem accelerators	en
dc.subject.other	Corrosion	en
dc.subject.other	Crystal growth	en
dc.subject.other	Earth atmosphere	en
dc.subject.other	Lead	en
dc.subject.other	Raman spectroscopy	en
dc.subject.other	Sulfate minerals	en
dc.subject.other	Sulfur dioxide	en
dc.subject.other	Carbon dioxide	en
dc.title	Lead patination in the atmosphere of Athens, Greece	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1016/j.nimb.2011.04.062	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.nimb.2011.04.062	en
heal.publicationDate	2011	en
heal.abstract	Pure metallic Pb foils were exposed to the atmosphere of Athens for different periods of time (up to 150 non-rainy days) in the summer of 2005. The interacted Pb surfaces were probed using the 12C(d,p)13C reaction (Ed: 1100 keV) at the Tandem accelerator of the NCSR ""DEMOKRITOS"". Laser-μRaman and SEM-EDS were also complementary applied. Using the above methodology we recorded surface carbon profiles and concentrations as a function of the exposure time, corresponding to the evolution of the carbonate layer formed onto Pb foils due to the interaction with atmospheric H2O and CO2. The C-containing surface layer was found to be stabilized after ∼120 days. Further investigation by means of laser-μRaman and SEM-EDS indicated that the patina initially consists of Pb-hydroxycarbonates (hydrocerussite) overgrowing Pb-oxides, whereas Pb-sulfates (anglesite) and possibly basic Pb-sulfates are formed at the end of the patination process. The crystal growth of Pb-sulfates, or most likely the transformation of hydroxycarbonates to sulfates, is attributed to the pollution of Athens atmosphere by SO2. © 2011 Elsevier B.V. All rights reserved.	en
heal.journalName	Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms	en
dc.identifier.doi	10.1016/j.nimb.2011.04.062	en
dc.identifier.volume	269	en
dc.identifier.issue	24	en
dc.identifier.spage	3074	en
dc.identifier.epage	3076	en