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dc.contributor.author
Gard, Faramarz Sahra  
dc.contributor.author
Duffó, Gustavo Sergio  
dc.contributor.author
Bergamasco, Pablo  
dc.contributor.author
Forlerer, Elena  
dc.date.available
2020-03-11T22:07:07Z  
dc.date.issued
2018-04  
dc.identifier.citation
Gard, Faramarz Sahra; Duffó, Gustavo Sergio; Bergamasco, Pablo; Forlerer, Elena; X-ray photoelectron spectroscopy on 1-peso and 2-pesos of the Argentine Republic; Elsevier Science; Applied Surface Science; 436; 4-2018; 720-731  
dc.identifier.issn
0169-4332  
dc.identifier.uri
http://hdl.handle.net/11336/99247  
dc.description.abstract
Relative concentrations of nickel and copper at the surface of the ring and centre parts of 1-peso and 2-pesos Argentine coins have been studied by means of X-ray photoemission spectroscopy (XPS). It has been observed Ni-enrichment at the surface of the ring (silvery) part of a 1-peso, minted in 1994, whereas the XPS data reveals lack of nickel at the surface of the centre (silvery) part of a 2-pesos, minted in 2016. This discrepancy is explained by analyzing the XPS peaks of oxygen and carbon, and is suggested to be related to the contamination layer on the surface of the coins. The XPS analysis of the golden parts of the coins, namely the centre part of the 1-peso and the ring part of the 2-pesos coins were inconclusive, due to the small amount of the Ni (nominally %2) used in those parts. The possible oxidations states of the metals at the surface of the untreated and treated coins with the artificial human sweat were also identified.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Elsevier Science  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
CU(I) OXIDE  
dc.subject
CU(II) OXIDE  
dc.subject
NI OXIDE  
dc.subject
SURFACE SEGREGATION  
dc.subject
XPS  
dc.subject.classification
Ingeniería de los Materiales  
dc.subject.classification
Ingeniería de los Materiales  
dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS  
dc.title
X-ray photoelectron spectroscopy on 1-peso and 2-pesos of the Argentine Republic  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2020-03-03T15:07:24Z  
dc.journal.volume
436  
dc.journal.pagination
720-731  
dc.journal.pais
Países Bajos  
dc.journal.ciudad
Amsterdam  
dc.description.fil
Fil: Gard, Faramarz Sahra. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Unidad de Actividad de Materiales (CAC); Argentina  
dc.description.fil
Fil: Duffó, Gustavo Sergio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Unidad de Actividad de Materiales (CAC); Argentina. Universidad Nacional de San Martín; Argentina  
dc.description.fil
Fil: Bergamasco, Pablo. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Unidad de Actividad de Materiales (CAC); Argentina  
dc.description.fil
Fil: Forlerer, Elena. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Unidad de Actividad de Materiales (CAC); Argentina  
dc.journal.title
Applied Surface Science  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0169433217336395  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.apsusc.2017.12.052