English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/164175
COMPARTIR / IMPACTO:
Estadísticas
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:
Título

Lanthanum-Silica Sol-Gel Coatings for Protecting Metallic Materials in Museums: Approaches to Copper, Bronze, Lead and Steel

AutorPeña-Poza, Javier; Agua Martínez, Fernando ; Gil, Cristina; Villegas Broncano, María Ángeles ; García Heras, Manuel
Fecha de publicación12-abr-2018
EditorMultidisciplinary Digital Publishing Institute
CitaciónCoatings 8 (4): 138 (2018)
ResumenMuseum objects made from metals face the challenge of delaying corrosion in exhibition rooms, showcases and holdings. This study examined some innovative solutions used to protect such items based on sol-gel coatings doped with lanthanum. These coatings were prepared from sols based on TEOS as a precursor. Lanthanum acetate/nitrate was added as a doping agent and corrosion inhibitor. The coatings were deposited upon slabs of copper, bronze, lead and steel, since they are among the most common metals present in museums items. The coatings application was accomplished by immersion-extraction, and the remaining sols were gelled and characterized by Fourier transformed infrared spectroscopy and differential thermal analysis and thermogravimetry. To evaluate the behaviour and resistance of the coatings, tests of accelerated aging were carried out in climatic and Kesternich chambers, as well as under an atmosphere saturated with organic acids and under UV irradiation. The simulated conditions tested were undertaken to approach real conditions inside a conventional museum showcase. The microstructure of the coatings before and after accelerated aging tests was observed through optical and field emission scanning electron microscopies. The results indicated that these coatings can be a useful preventive, conservation avenue to protect copper, bronze and lead items exhibited in museums.
Versión del editorhttp://dx.doi.org/10.3390/coatings8040138
URIhttp://hdl.handle.net/10261/164175
DOIhttp://dx.doi.org/doi: 10.3390/coatings8040138
Identificadoresdoi: 10.3390/coatings8040138
Aparece en las colecciones: (CCHS-IH) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
coatings-08-00138.pdf30,43 MBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.