126020 20241125101152.0 doi 10.1016/j.culher.2023.03.005 sideral 133481 ART-2023-133481 eng Maingi, E. M. UV femtosecond laser cleaning of encrusted historical stained-glasses 2023 Access copy available to the general public Unrestricted Laser irradiation enables the removal of unwanted surface deposits from different materials in a safe and controllable manner. Laser parameters should be carefully selected to achieve the removal of the target contaminants without inducing damage to the substrate. Ultra-short pulse lasers have opened new opportunities for safe and controlled decontamination of cultural heritage materials because the thickness of material that is affected by the laser is limited. In this study, an ultraviolet femtosecond pulsed laser was used for the removal of unwanted encrustation formed on the surface of an historical colourless stained-glass sample from the Cuenca Cathedral in Spain. One of the sides of this glass exhibits a reddish-brown grisaille that also has to be preserved. A laser cleaning process has been designed to avoid heat accumulation while controlling the thickness of ablated material. In this context, a multi-step process was selected in order to be able to eliminate, in a controlled way, the crust layer without damaging the grisaille layer, or the glass substrate. In this case, laser irradiation in beam scanning mode with a pulse repetition frequency of 10 kHz proved to be effective for the safe cleaning of the glass. The latter was analysed before and after laser cleaning by optical and confocal microscopy, scanning electron microscopy, energy dispersive X-ray spectroscopy, X-ray fluorescence, and Raman spectroscopy, confirming that the crust layer was effectively eliminated without damaging the surface. info:eu-repo/grantAgreement/ES/DGA/T54-20R info:eu-repo/grantAgreement/EC/H2020/766311/EU/European Doctorate in ARchaeological and Cultural Heritage MATerials science/ED-ARCHMAT This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 766311-ED-ARCHMAT info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 3.5 2023 GEOSCIENCES, MULTIDISCIPLINARY 58 / 254 = 0.228 2023 Q1 T1 SPECTROSCOPY 6 / 44 = 0.136 2023 Q1 T1 MATERIALS SCIENCE, MULTIDISCIPLINARY 185 / 439 = 0.421 2023 Q2 T2 CHEMISTRY, ANALYTICAL 32 / 106 = 0.302 2023 Q2 T1 0.722 2023 Economics, Econometrics and Finance (miscellaneous) 2023 Q1 History 2023 Q1 Conservation 2023 Q1 Anthropology 2023 Q1 Archeology (arts and humanities) 2023 Q1 Materials Science (miscellaneous) 2023 Q2 Spectroscopy 2023 Q2 Chemistry (miscellaneous) 2023 Q2 Computer Science Applications 2023 Q2 6.8 2023 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Alonso, M. P. Fuente, Germán F. de la (orcid)0000-0002-0500-1745 Dubernet, S. Lefrais, Y. Chapoulie, R. Vally, E. Angurel, L. A. Universidad de Zaragoza (orcid)0000-0001-5685-2366 5001 065 Universidad de Zaragoza Dpto. Ciencia Tecnol.Mater.Fl. Área Cienc.Mater. Ingen.Metal. 61 (2023), 100-108 J. cult. herit. Journal of cultural heritage 1296-2074 2600161 http://zaguan.unizar.es/record/126020/files/texto_completo.pdf Versión publicada 2645478 http://zaguan.unizar.es/record/126020/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:126020 articulos driver 2024-11-22-12:07:18 ARTICLE