Sökning: onr:"swepub:oai:DiVA.org:kth-21705" > Determination of in...
Fältnamn | Indikatorer | Metadata |
---|---|---|
000 | 03265naa a2200505 4500 | |
001 | oai:DiVA.org:kth-21705 | |
003 | SwePub | |
008 | 100810s2002 | |||||||||||000 ||eng| | |
024 | 7 | a https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-217052 URI |
024 | 7 | a https://doi.org/10.1016/S0010-938X(02)00015-X2 DOI |
040 | a (SwePub)kth | |
041 | a engb eng | |
042 | 9 SwePub | |
072 | 7 | a ref2 swepub-contenttype |
072 | 7 | a art2 swepub-publicationtype |
100 | 1 | a Zhang, X. Y.4 aut |
245 | 1 0 | a Determination of instantaneous corrosion rates and runoff rates of copper from naturally patinated copper during continuous rain events |
264 | 1 | c 2002 |
338 | a print2 rdacarrier | |
500 | a QC 20100525 | |
520 | a Instantaneous corrosion rates of naturally patinated copper of varying age (16 months, 138 and 145 years) have been determined during continuous rain events in the laboratory with electrochemical impedance spectroscopy using a two-electrode cell. The two-electrode cell was found to yield the same information in bulk rainwater as a conventional three-electrode cell. Relatively constant corrosion rates, between 0.2 and 0.6 mum/y, were determined for samples having a two-layer structure with an inner brownish layer of cuprous oxide and an outer greenish layer of basic copper salts (138, 145 years). Samples with cuprous oxide as the dominating phase of the patina (16 months) showed higher and somewhat increasing corrosion rates during a rain event (from 0.6 to 1.2 mum/y). During a continuous rain event, corrosion rates were found to be approximately 10 (brownish patina) and 25 times (greenish patina) lower than corresponding instantaneous runoff rates. The first flush phenomena of the runoff process, with an increased concentration during first flush and a relatively constant concentration during steady state, was indirectly seen as an increase in solution conductivity during the first rain volume followed by relative constant value. The contribution of the concentration in the first flush to the total annual runoff rate was significant for panels having a greenish layer (138, 145 years) whereas it was negligible for panels having a brownish layer (16 months). | |
653 | a atmospheric corrosion | |
653 | a copper | |
653 | a corrosion rate | |
653 | a runoff rate | |
653 | a artificial rain | |
653 | a electrochemical impedance spectroscopy | |
653 | a electrochemical impedance spectroscopy | |
653 | a atmospheric corrosion | |
653 | a electrolyte layers | |
653 | a galvanized steel | |
653 | a ac-impedance | |
653 | a thin | |
653 | a media | |
653 | a roofs | |
653 | a iron | |
653 | a zinc | |
700 | 1 | a He, W. L.4 aut |
700 | 1 | a Odnevall Wallinder, Ingeru KTH,Materialvetenskap4 aut0 (Swepub:kth)u1ngonee |
700 | 1 | a Pan, Jinshanu KTH,Materialvetenskap4 aut0 (Swepub:kth)u17ks6cf |
700 | 1 | a Leygraf, Christoferu KTH,Materialvetenskap4 aut0 (Swepub:kth)u1itk7c9 |
710 | 2 | a KTHb Materialvetenskap4 org |
773 | 0 | t Corrosion Scienceg 44:9, s. 2131-2151q 44:9<2131-2151x 0010-938Xx 1879-0496 |
856 | 4 8 | u https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-21705 |
856 | 4 8 | u https://doi.org/10.1016/S0010-938X(02)00015-X |
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