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Título

Laser processing of ceramic substrates modified by deposition of metals and oxides.

AutorRico, Víctor J. ; Gil-Rostra, J. ; Yubero, Francisco ; Espinós, J.P. ; González-Elipe, Agustín R. ; Lahoz, Ruth; Rey-García, F.; Fuente, Germán F. de la
Fecha de publicación2014
CitaciónE-MRS 2014
ResumenThis work reports the room temperature laser processing of white ceramic tiles with the purpose of coloring their surface. The method involves the evaporation on their surface of very small amounts of copper metal or a mixed oxide of copper in silicon oxide. Avoidance of the formation of a mirror film in the former case is a prerequisite for the successful laser treatment. For this purpose copper is evaporated at glancing angles to form small aggregates that depict plasmon resonance absorption before their percolation threshold to form a continuous mirror-like surface. The Cu-Si mixed oxide films were deposited by magnetron sputtering. IN the two cases irradiating the modified surface with a ¿. Laser lead to the development of a relatively large variation of colors ranging from blue, green to yellow. Analysis of these surfaces with UV-vis absorption spectroscopy, XPS and SIMS demonstrate that each color can be associated with a different chemical and agglomeration state of copper in the modified surfaces . The developed technology can be of general use with other metals and ceramic substrates to produce different type of colors and functionalities.
DescripciónResumen del trabajo presentado al: "European Materials Research Society Spring Meeting", celebrado en Lille (Francia) del 26 al 30 de mayo de 2014.
URIhttp://hdl.handle.net/10261/122779
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