Search results for "SEM-EDS"

MICROSCOPIC TECHNIQUES AND A MULTI-ANALYTICAL APPROACH TO CHARACTERIZE THE MATERIALS OF TWO RUSSIAN ICONS

2018

Two 19th century Russian icons, from the Museo Diocesano of Palermo, were analysed by UV photography, X-ray fluorescence, energy-dispersive X-ray fluorescence (ED-XRF), optical microscopy, micro-Raman spectroscopy and Scanning Electron Microscopy, combined with energy dispersive x-ray analysis, (SEM/EDS). The multi-analytical study of the icons “Protezione della Madre di Dio” (Pokrov’s Icon, Protection of Holy Mother of God) and ‘’Madre di Dio Gioia di Tutti gli Afflitti’’, (Holy Mother of God, Joy of all the afflicted), have been performed to reveal materials and technological features of the original painting of the 19th century as well as the materials used during past restoration works.…

Caratterizzazione tecnologica di mattoni in maiolica prodotti nell'area delle Madonie (Sicilia centro-settentrionale) tra il XVI e il XVIII secolo.

2010

Reconsidering the accuracy of X-ray fluorescence and ion beam based methods when used to measure the thickness of ancient gildings

2017

Since at least 5000 years ago, gilding techniques have been used for decoration purposes or to make artefacts appear as made of solid gold. Investigation of ancient gildings inevitably requires measuring their thickness, which is usually done either through the observation of cross-sections or by methods such as Rutherford backscattering spectroscopy, particle-induced X-ray emission and X-ray fluorescence. Whereas the former method requires sampling, the latter ones are non-invasive and therefore preferable. These non-invasive methods, however, measure the number of atoms per unit area, which can be converted into thickness only if the density is known. So far this has not been considered a…

Issues Related to the Restoration of Mirrors of the Wooden paliotto della chiesa del Santissimo Crocifisso all’Albergheria, Sicily (Italy)

2017

ABSTRACTIn this work, the decision-making process involved in the restoration of the eighteenth century paliotto ligneo (wooden altar frontal) della chiesa del Santissimo Crocifisso all’Albergheria of Palermo is presented. Earlier research concerning mirror restoration was based on only a few case studies and the proposed techniques were not suitable for the artwork here. As a consequence, it was necessary to re-examine theories and protocols of modern restoration to plan an appropriate intervention of the altar frontal. Since in this artwork the role of mirrors is not to give back images, as usual, but rather to create special light effects and play of lights, this work aims to find an app…

The majolica production of Northern central Sicily (16th - 18th Century AD): Archaeometric evidence

2007

MULTIDISCIPLINARY STUDY FOR THE DATING AND THE RESTORATION OF THE SAN VITO WOODEN PULPIT OF MUSEO DIOCESANO OF PALERMO

2017

The aim of the present research is to investigate the execution techniques of San Vito wooden pulpit in the Museo Diocesano of Palermo and to provide helpful information to dating it in addition to technical, historical and artistic evaluations. In particular, this paper describes the application of analytical techniques (imaging diagnostics techniques, Scanning Electron Microscopy coupled with X-ray Energy Dispersive spectroscopy Scanning Electron Microscopy-Energy Dispersive X-ray Spectroscopy and Fourier Transform Infrared Spectroscopy) to better understand the pulpit characteristics, both support and decoration, useful to plan and perform the correct restoration.

The panel painting represinting Madonna con bambino e San Giovanni of Museo Diocesano of Palermo: Scientific studies for the restoration

2017

The present research focuses on a painting on wood representing the Madonna con Bambino e San Giovanni, attributed to an unknown artist belonging to the Cretan-Venetian school, dated to the end of 16th century. The aim of the study is to provide a complete knowledge of the characteristics of the artefact in order to plane and perform a procedure according to conservative restoration. Historical and artistic evaluations and technical investigations were carried out for identifying the context, the constitutive materials and the executive techniques. The study was supported by the application of non-invasive (multispectral investigations and X-ray Fluorescence Spectroscopy) and analytical tec…

THE ‘CRUCIFIED AND DEPOSED CHRIST’ OF MUSEO DIOCESANO OF PALERMO, ITALY. SCIENTIFIC STUDIES OF A SICILIAN PAPIER-MȂSCHÉ POLYCHROME SCULPTURE

2022

In this paper we describe scientific investigations on the artwork ‘Crucified and deposed Christ’ from the Diocesan Museum of Palermo. Multidisciplinary studies were carried out to obtain interesting information about constitutive materials and executive techniques of XVIII century Sicilian papier mâsché, as well as about the sculpture state of conservation and the recognition of the previous treatments.Examination of the polychrome sculpture was both non-invasive (IRR, IRC, UV fluorescence, EDXRF spectroscopy X-Radiography) and micro invasive (optical microscopy, scanning electron microscopy with energy dispersive X-ray spectroscopy SEM-EDX).SEM-EDX results showed the use of materials like…