Search results for " XRF"
showing 7 items of 27 documents
Investigations on standard pigments with multispectral and XRF analysis
2008
ART AND TECHNIQUE: ARTISTIC REPRODUCTION OF THE ANCIENT BRONZE IL GUERRIERO DA PETRALIA SOTTANA
2016
The reproduction of artistic objects is useful for museological, teaching, and commercial purposes. In some cases, the reproduction is carried out to replace the originals located in outdoor environments and to prevent the deterioration due to weathering or pollution. This article describes the different phases that led to the reproduction of the Il Guerriero da Petralia Sottana. The observation of stylistic characteristics and the physical-chemical investigation were carried out in order to obtain information about the composition of the alloy and the technological properties of the artifact by using Optical Microscopy and X- ray Fluorescence. The reproduction in wax was performed by using…
Composizione chimica
2011
Integrated analytical methodologies for the non-invasive study of Cultural Heritage: the case study of Renaissance Statues of Abatellis Palace
2012
Volcanic products of Lipari (Aeolian islands, Italy): Multivariate analysis of petrographic and radiometric data
2010
Abstract A petrographic and radiometric study, along with statistical multivariate analysis of volcanic products of the island of Lipari (Aeolian islands, Italy) was carried out. The volcanological history of Lipari was reconstructed defining two stages (pre- and post-erosive stages) further on subdivided in four volcanic phases, each of which characterized by products with a particular chemical composition and separated by stratigraphic unconformities. The correlations between petrographic features, determined by X-ray fluorescence, and volcanological history of the island highlight a gradual differentiation with younger rocks showing a more acid chemical composition than the older ones. R…
Ori e cromie dei marmi rinascimentali di Palazzo Abatellis: indagine non invasiva tramite spettrometria XRF.
2009
Tecniche spettroscopiche integrate per lo studio di pigmenti storici
2011
Tra le tecniche spettroscopiche per lo studio dei pigmenti storici, la fluorescenza a raggi X (XRF) e la spettroscopia mediante ablazione laser (LIBS) risultano complementari per le informazioni fornite in termini composizionali e di spessori indagati. A differenza dell'analisi XRF, la LIBS permette l'identificazione degli elementi chimici a basso Z e, attraverso impulsi laser consecutivi, consente di ricostruire la stratigrafia caratteristica del campione. Sono state condotte analisi spettroscopiche su frammenti di pitture murali provenienti da diversi siti e su pigmenti in polvere. I risultati hanno permesso di valutare le potenzialità, in campo archeometrico, della tecnica LIBS rispetto …