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Multianalytical in situ investigation of the initial atmospheric corrosion of bronze
KTH, Tidigare Institutioner                               , Materialvetenskap.ORCID-id: 0000-0003-2206-0082
KTH, Tidigare Institutioner                               , Materialvetenskap.ORCID-id: 0000-0002-9453-1333
Vise andre og tillknytning
2002 (engelsk)Inngår i: Corrosion Science, ISSN 0010-938X, E-ISSN 1879-0496, Vol. 44, nr 4, s. 791-802Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Atomic force microscopy (AFM) and infrared reflection absorption spectroscopy (IRAS) were used for in situ investigations of the initial atmospheric corrosion of bronze. In addition ex situ XPS investigations were carried out on the samples before and after the exposure, as well as on the sputtered bronze sample. Investigations were carried out in synthetic air with 80% relative humidity (RH) and synthetic air with 80% RH with 250 ppb SO2. At 80% RH, small features covering the surface were observed with AFM, whereas IRAS detected that more water is adsorbed on the bronze sample surface compared to pure copper. Large features on top of smaller features were observed with AFM on the bronze surface exposed to SO2-containing humidified air. These large features were identified as copper sulfite. Furthermore, cuprous oxide was detected approximately 500 min after the introduction Of SO2. This fact and the XPS results indicate the formation of a protective lead oxide layer already during the preparation of the sample, which is destroyed by the SO2-containing environment and leads to the formation of cuprous oxide and copper sulfite.

sted, utgiver, år, opplag, sider
2002. Vol. 44, nr 4, s. 791-802
Emneord [en]
copper alloy, bronze, atomic force microscopy, IR spectroscopy, XPS, atmospheric corrosion, reflection-absorption-spectroscopy, atomic-force microscopy, in-situ, sulfur-dioxide, copper-alloys, surfaces, air
Identifikatorer
URN: urn:nbn:se:kth:diva-21293ISI: 000173629900011OAI: oai:DiVA.org:kth-21293DiVA, id: diva2:339991
Merknad
QC 20100525Tilgjengelig fra: 2010-08-10 Laget: 2010-08-10 Sist oppdatert: 2017-12-12bibliografisk kontrollert

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Odnevall Wallinder, IngerLeygraf, Christofer

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