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Analysis of historic copper patinas 2: Characterization of 400 year old patina from Royal Summer Palace in Prague
KTH, Skolan för kemivetenskap (CHE), Kemi, Yt- och korrosionsvetenskap.
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2017 (Engelska)Ingår i: 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 , 2017Konferensbidrag, Publicerat paper (Refereegranskat)
Abstract [en]

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.

Ort, förlag, år, upplaga, sidor
Asociace koroznich inzenyru z.s.- AKI - Czech Association of Corrosion Engineers , 2017.
Nyckelord [en]
Atmospheric corrosion, Characterization, Copper tile, Patina, Queen Anne's Summer Palace
Nationell ämneskategori
Annan kemi
Identifikatorer
URN: urn:nbn:se:kth:diva-234519Scopus ID: 2-s2.0-85052322168OAI: oai:DiVA.org:kth-234519DiVA, id: diva2:1246304
Konferens
Joint European Corrosion Congress 2017, EUROCORR 2017 and 20th International Corrosion Congress and Process Safety Congress 2017, Prague Congress Centre, Prague, Czech Republic, 3 September 2017 through 7 September 2017
Anmärkning

QC 20180907

Tillgänglig från: 2018-09-07 Skapad: 2018-09-07 Senast uppdaterad: 2018-11-09Bibliografiskt granskad

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Chang, TingruOdnevall Wallinder, IngerLeygraf, Christopher

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Totalt: 76 träffar
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