9 documents found, page 1 of 1
On the use of EDXRF and UV–Vis FORS to unveil the production of two illuminated...
Tiburcio, C.; Valadas, S.; Cardoso, A.; Candeias, A.; Barreira, C.; Miguel, C.During the first three quarters of the fifteenth century the Portuguese Royal Court had significant literary production of which the “Lisbon's General Chronicle of Spain”, produced ca. 1430–1450, and the “Chronicle of D. Duarte de Meneses”, produced around 1470, are two remarkable testimonies. In order to support or refute the common origin of these manuscripts from the Court scriptorium, microscopic (digital m...
A multi-analytical study of egyptian funerary artifacts from three portuguese m...
Schiavon, Nicola; Panganiban, P.; Valadas, S.; Dias, C.B; Manhita, A.; Candeias, A.A diachronic, multi-analytical approach combining EDXRF, µFTIR, µRaman, SEM-EDS, and Py-GC/MS has been adopted with the aim to study for the first time the painting materials used to decorate Egyptian funerary masks and sarcophagi ranging from the Late Period to the Roman Period and stored in the Archaeological National Museum (MNA) and the Carmo Archaeological Museum (MAC) of Lisbon and the Natural History Mus...
Problems of Analysis by FTIR of Calcium Sulphate-Based Preparatory Layers: The ...
Melo, H. P.; Cruz, António João; Candeias, A.; Mirão, José; Cardoso, A. M.; Oliveira, M. J.; Valadas, S.This paper provides a contribution to FTIR analysis of calcium sulphate-based grounds of paintings when a mixture of compounds with different degrees of hydration is present. The study is based on the analysis with that technique, electron microscopy coupled with energy-dispersive X-ray spectrometry and X-ray diffraction of both the grounds of 16th-century Portuguese paintings and reference samples prepared wit...
Microanalytical study of the fresco ‘the good and the bad judge’ in the medieva...
Gil, M.; Araujo, C.; Carvalho, M.L.; Longelin, S.; Dias, L.; Valadas, S.; Souto, C.; Frade, J.; Ribeiro, I.; Mirao, J.; Candeias, A.This article describes a study carried out on the emblematic mural painting so-called ‘fresco of the good and bad judge’ located at the medieval village of Monsaraz (southern Portugal). This painting, with two distintic narratives, is thematically unique in Portugal and rare in the context of European Renaissance art. Scientific research was undertaken to clarify doubts about the chronology of the two painted s...
Study of Mural Paintings Using In Situ XRF, Confocal Synchrotron-m-XRF, m-XRD, ...
Valadas, S.; Candeias, A.E.; Mirão, J.; Tavares, D.; Coroado, J.; Simon, R.; Silva, A.S.; Gil, M.; Guilherme, A.; Carvalho, M.L.In this work, we present the results of an analytical method developed for detailed pigment identification, stratigraphy, and degradation of the paint layers of mural paintings applied in the study of the 17th century frescoes from the Misericordia Church of Odemira ~Southwest Portugal!. In situ X-ray fluores- cence spectrometry analyses were performed on three panels of the mural paintings and complemented by ...
Blue Pigment Colors from Wall Painting Churches in Danger (Portugal 15th to 18t...
Gil, M.; Carvalho, M.L.; Longelin, S.; Ribeiro, I.; Valadas, S.; Mirão, J.; Candeias, A.Samples of blue wall paint layers from selected 15th to 18th century religious mural paintings from southern Portugal (Alentejo) have been analyzed using a multi-analytical methodology involving the combination of in situ visible spectro-colorimetry with microanalytical techniques such as optical and scanning electron microscopy and Raman spectroscopy. In situ analyses and micro-sampling were carried out in nin...
Characterization of Japanese color sticks by energy dispersive X-ray fluorescen...
Manso, M.; Valadas, S.; Pessanha, S.; Guilherme, A.; Queralt, I.; Candeias, A.E.; Carvalho, M.L.This work comprises the use of energy dispersive X-ray fluorescence (EDXRF), X-ray diffraction (XRD) and Fourier transformed infrared (FTIR) techniques for the study of the composition of twentieth century traditional Japanese color sticks. By using the combination of analytical techniques it was possible to obtain information on inorganic and organic pigments, binders and fillers present in the sticks. The col...
A casa de Fresco de Sanches de Baena - Elementos de estudo para o seu conhecimento
Gil, M.; Serrão, V.; Santos Silva, A.; Mirão, J.; Valadas, S.; Martins, R.; Candeias, A.A casa de Fresco de Sanches de Baena situado em Vila Viçosa é um exemplo gritante de um património cultural em risco, que apela a um estudo e intervenção urgentes para a sua salvaguarda e preservação. No âmbito do projecto MURAL2D: Murais em Risco no Alentejo – Degradação e Diagnóstico, pretende-se dar continuidade aos estudos já iniciados em 2008 pelo laboratório HERCULES da Universidade de Évora, ao nível das...
Study of mural paintings using in-situ XRF, confocal Synchrotron-μ-XRF, μ-XRD, ...
Valadas, S.; Candeias, A.; Mirão, J.; Taveres, D.; Coroado, J.; Simon, R.; Santos Silva, A.; Gil, M.; Guilherme, A.; Carvalho, M. L.In this work, we present the results of an analytical method developed for detailed pigment identification, stratigraphy, and degradation of the paint layers of mural paintings applied in the study of the 17th century frescoes from the Misericordia Church of Odemira (Southwest Portugal). In situ X-ray fluorescence spectrometry analyses were performed on three panels of the mural paintings and complemented by co...