Título: Laser‐induced Coloration of Ceramic Tiles Covered with Magnetron Sputtered Precursor Layers
Conferenciante: Dr. Victor J. Rico Gavira
Fecha: martes, 2 de abril de 2019
Horario: 10:00 h
Lugar: Seminario cicCartuja 2
This paper reports a new methodology for the coloring of glazed ceramic tiles consisting of the near infrared pulsed laser processing of copper containing oxide coatings prepared by magnetron sputtering.
As a second approach, the employ for the same purpose of a novel laser furnace technique is also described. Changing the laser parameters and using the laser furnace to treat the tiles at high temperature during irradiation has resulted in a wide color palette.
The optical characterization of the modified tiles by UV‐Vis spectroscopy has been complemented with their microstructural and compositional analysis by Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), and Time Of Flight Secondary Ion Mass Spectrometry (TOF‐SIMS).
The chemical composition of the surface was obtained by X‐ray Photoemission Spectroscopy (XPS) and its structure determined by X?ray diffraction (XRD). The chemical resistance was characterized by several tests following the norm ISO 10545‐13. Color changes have been attributed to surface microstructural and chemical transformations that have been accounted for by simple models involving different ablation, melting, diffusion, and segregation/agglomeration phenomena depending on the laser treatments employed.
Ganador: Laura Ortega-Moreno (IIQ). Primer accésit: Alberto Rodriguez-Gómez (ICMS). Segundo accésit: ex aequo Alejandra Guerra-Castellano (IIQ) y Miguel Anaya Martín (ICMS)
La doctora y ex directora del Instituto de Investigaciones Químicas (IIQ) sustituye así en el cargo a Miguel Ferrer
Asunción Fernández (ICMS) dará la charla inaugural en la que abordará el tema de la mujer en la ciencia y la importancia de la divulgación científica.
Un estudio con participación de Gerardo Colón (ICMS) revela cuáles son las fases que producen hidrógeno en un sistema de cobre y niquel fotocatalítico.
La acción MSCA-IF-EF fomenta la movilidad entre países europeos para la realización de proyectos de investigación.
La acción MSCA-IF-RI apoya a investigadores ubicados en terceros países para retornar a Europa y realizar su proyecto de investigación.
Nota de prensa del encuentro celebrado entre el alcalde y representantes de las instituciones que realizan investigación pública en Sevilla