Resumen: 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. Idioma: Inglés DOI: 10.1111/jace.16022 Año: 2018 Publicado en: JOURNAL OF THE AMERICAN CERAMIC SOCIETY 102, 4 (2018), 1589-1598 ISSN: 0002-7820 Factor impacto JCR: 3.094 (2018) Categ. JCR: MATERIALS SCIENCE, CERAMICS rank: 3 / 28 = 0.107 (2018) - Q1 - T1 Factor impacto SCIMAGO: 0.974 - Materials Chemistry (Q1) - Ceramics and Composites (Q1)