http://www.cnr.it/ontology/cnr/individuo/prodotto/ID53518

Bronze Roman mirrors: the secret of brightness (Articolo in rivista)

Type

Label

Anno

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

Alternative label

G.M.Ingo, E. Angelini, T. de Caro, C. Riccucci, P. Plescia (2006)
Bronze Roman mirrors: the secret of brightness
in Applied physics. A, Materials science & processing (Print)
(literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

Pagina inizio

Pagina fine

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

Rivista

Note

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

Titolo

Abstract

The surface microchemical structure of high tin leaded bronze Roman mirrors has been studied by means of scanning electron microscopy combined with energy dispersive spectrometry (SEM-EDS), X-ray diffraction (XRD) and optical microscopy (OM) techniques. The results allowed understanding of the origin of their high chemical stability and silvery-lustrous appearance. Indeed, some areas of the selected Roman mirrors are still characterised by a highly reflective and silver coloured surface even though they have been buried in the soil for about 2000 years. The micro-chemical results obtained from these areas have revealed that the mirror surface was tin enriched via inverse-segregation phenomenon by tailoring the cooling parameters. Furthermore, the presence of tin could be likely enhanced via cycles of oxidation and selective copper corrosion processes, thus resulting in a tin surface enrichment as a semi-transparent amorphous-like tin oxide (SnO(2)) film, as well as a copper depletion at the outer surfaces. (literal)

Prodotto di

Autore CNR

Prodotto

Autore CNR di

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

data.CNR.it