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A multitechnique study of archeological bronzes
Surface and interface analysis, 2008-03, Vol.40 (3-4), p.464-468
Northover, Peter
Crossley, Alison
Grazioli, Cesare
Zema, Nicola
La Rosa, Salvatore
Lozzi, Luca
Picozzi, Pietro
Paparazzo, Ernesto
2008
Details
Autor(en) / Beteiligte
Northover, Peter
Crossley, Alison
Grazioli, Cesare
Zema, Nicola
La Rosa, Salvatore
Lozzi, Luca
Picozzi, Pietro
Paparazzo, Ernesto
Titel
A multitechnique study of archeological bronzes
Ist Teil von
Surface and interface analysis, 2008-03, Vol.40 (3-4), p.464-468
Ort / Verlag
Chichester, UK: John Wiley & Sons, Ltd
Erscheinungsjahr
2008
Link zum Volltext
Quelle
Wiley Online Library
Beschreibungen/Notizen
We used XPS, X‐AES, synchrotron radiation‐induced total electron yield X‐ray absorption spectroscopy (XAS), synchrotron radiation‐induced photoelectron microscopy (PEM), and electron‐probe microanalysis (EPMA) techniques to explore the elemental and microchemical properties of two tin‐bronzes (denoted A and B) found at a necropolis located in Fossa (Abruzzo, Italy), and dating from the late ninth century B.C. EPMA shows that the bulk elemental composition of the two bronzes is very much alike as far as the leading metals are concerned, whereas the main differences are limited to the composition of trace elements (A is notably richer in Pb and much poorer in Co). PEM highlights lateral chemical inhomogeneities with a spatial resolution in the submicron range. X‐AES Cu L3 MM spectra show that the content of metallic copper is more abundant in the surface region of A than in B. XPS finds that the amount of carbon‐bearing species is about 40% more abundant in the former sample. A significant enrichment of metallic copper at the surface of the same bronze is confirmed by XAS Cu L2, 3 edge experiments. We interpret the ‘high’ carbon content found at the surface of bronze A as arising from intentional rubbing with organic substances, e.g. oil. The fact that the same bronze features a higher ‘metallization’ of surface copper suggests that such a procedure proved successful in minimizing the oxidation induced by the surroundings. We discuss the diagnostic potential of our multitechnique approach as a means for studying the surface chemistry of ancient metalwork. Copyright © 2008 John Wiley & Sons, Ltd.
Sprache
Englisch
Identifikatoren
ISSN: 0142-2421
eISSN: 1096-9918
DOI: 10.1002/sia.2647
Titel-ID: cdi_proquest_miscellaneous_33020478
Format
–
Schlagworte
archeological bronze
,
Condensed matter: electronic structure, electrical, magnetic, and optical properties
,
Condensed matter: structure, mechanical and thermal properties
,
Cross-disciplinary physics: materials science
,
rheology
,
Exact sciences and technology
,
Physics
,
synchrotron radiation photoelectron microscopy
,
synchrotron radiation XAS
,
X-AES
,
XPS
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