Copper based hydrophobic ceramic nanocoating
A mechanism for the development of nanocoatings for the tiles industry by using copper nanoparticles has been proposed. A standard processing procedure in which ceramics were fast-firing at 1200°C in air atmosphere simulating an industrial process was followed. The ceramic nanocoating was multifunct...
| Autores: | , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión aceptada para publicación |
| Fecha de publicación: | 2012 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/376654 |
| Acceso en línea: | http://hdl.handle.net/10261/376654 |
| Access Level: | acceso abierto |
| Palabra clave: | Microstructure-final Nanostructure-final Functional applications Hydrophobicity glaze |
| Sumario: | A mechanism for the development of nanocoatings for the tiles industry by using copper nanoparticles has been proposed. A standard processing procedure in which ceramics were fast-firing at 1200°C in air atmosphere simulating an industrial process was followed. The ceramic nanocoating was multifunctional having shine metallic aspect and hydrophobic characteristics. The surface crystallizations were studied by X-ray diffraction and corresponded to copper oxide nanocrystals. The hydrophobic response was based in the nanoroughness of the surface and correlated with the Cu+/Cu2+ ratio as determined by XANES. The cellular nano microstructure look biomimetic with the one of hydrophobic leafs. The development of the cellular nano microstructure was based on the Rayleigh-Bernard cells of a saturated glass during cooling in which thermal convection currents allow the crystallization of nanoparticles at the surface of the glass. © 2011 Elsevier Ltd. |
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