Analysis of historic copper patinas 2: Characterization of 400 year old patina from Royal Summer Palace in Prague

Analysis of historic copper patinas 2 : Characterization of 400 year old patina from Royal Summer Palace in Prague

Asociace koroznich inzenyru z.s.- AKI - Czech Association of Corrosion Engineers,2017
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QC 20180907
This paper presents an in-depth characterisation study of the patina formed on a copper tile taken from the roof of Queen Anne's Summer Palace in Prague after close to 400 years of exposure to the action of the atmosphere. A wide variety of techniques have been performed, including metallographic and chemical analysis (electrogravimetry, AAS, XRF) of the copper matrix, and spectroscopic and microscopic investigations (GIXRD, TEM/EDS and SEM/EDS) to determine the composition and structure of the patina. The major conclusions of the study are: (a) the base copper contains abundant inclusions mainly of rosiaite (PbSb2O6); (b) the patina is formed by an inner sublayer of cuprite (Cu2O) and an outer sublayer of brochantite [Cu4SO4(OH)6] and antlerite [Cu3SO4(OH)4] and traces of azurite [Cu3(CO3)2(OH)2]; and (c) the brochantite/antlerite crystals are randomly doped with Fe and C.

Fuente, D. D. L. (author)
Jiménez, J. A. (author)
Chang, TingruKTH,Yt- och korrosionsvetenskap(Swepub:kth)u1yxvo8u (author)
Odnevall Wallinder, Inger,1965-KTH,Yt- och korrosionsvetenskap(Swepub:kth)u1ngonee (author)
Leygraf, Christopher,1946-KTH,Yt- och korrosionsvetenskap(Swepub:kth)u1itk7c9 (author)
Morcillo, M. (author)
KTHYt- och korrosionsvetenskap (creator_code:org_t)

In:EUROCORR 2017 - The Annual Congress of the European Federation of Corrosion, 20th International Corrosion Congress and Process Safety Congress 2017: Asociace koroznich inzenyru z.s.- AKI - Czech Association of Corrosion Engineers

By the author/editor: Chico, B.; Fuente, D. D. L.; Jiménez, J. A.; Chang, Tingru; Odnevall Wallind ...; Leygraf, Christo ...; show more...; Morcillo, M.; show less...

About the subject

NATURAL SCIENCES: NATURAL SCIENCES; and Chemical Science ...; and Other Chemistry ...

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