6533b7d0fe1ef96bd125a3aa
RESEARCH PRODUCT
Materials, Techniques, and Conservation of Historic Stained Glass “Grisailles”
Andrew J. ShortlandG. MolinaRafael IbáñezTrinitat PradellJudit MoleraChaoren LiuSonia Murciasubject
Materials science010401 analytical chemistryMineralogychemistry.chemical_elementWeathering02 engineering and technologyFlat glass021001 nanoscience & nanotechnology01 natural sciencesCopperLayer thicknessStained glassGrisailles0104 chemical sciencesAmorphous solidchemistryGlass craft:Física::Física molecular [Àrees temàtiques de la UPC]General Materials Science0210 nano-technologyVidre -- Conservació i restauraciódescription
A grisaille is a brown-blackish paint applied onto the inner surface of stained glass to draw the contours and details of the figures and to produce the effect of shades and volumes. Grisailles were traditionally made of finely ground oxides of iron but also of copper, zinc, lead, or manganese mixed with a flux such as lead ground glass and a binder and fixed onto the flat glass by firing. The grisailles have typical layer thickness varying between 10 and 100 µm and are formed by a complex mixture of pigment particles, crystalline, and amorphous reaction compounds, aging, and weathering compounds. The high brilliance, collimation, energy selection, and monochromacity of the SR beam are ideal to obtain micro-XRD patterns from thin cross sections of the grisailles. The analyses are complemented with SEM-EDX and LA-ICPMS. A selection of grisailles from several cathedrals and buildings in Spain, Avila, Burgos, Alcalá de Henares, and in particular from Segovia, dating from early 16th to the 20th century and belonging to several master glaziers are studied. Changes in the methods of production and materials in the different historical periods are obtained and also related to the conservation state of the materials.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2015-07-01 | International Journal of Applied Glass Science |