Grey scale promoted through laser ablation onto phosphate coated zinc commercial plates
authors Rey-Garcia, F; Costa, FM; Fernandes, AJS; Oliveira, FJ; Rino, L; Bao-Varela, C
nationality International
journal OPTICS AND LASERS IN ENGINEERING
author keywords Zinc; Laser ablation; Surface processing; Decorative coatings; Grey scale
keywords THIN-FILMS; CONVERSION COATINGS; STEEL; DEPOSITION; ALLOYS; PULSES; LAYERS; AL
abstract Phosphate coated zinc commercial plates (Anthra-Zinc (R)) have been processed by laser ablation in the nanosecond pulsed regime varying the repetition rate at 10, 20 and 50 kHz. Phosphate coating was completely characterized. By monitoring the fluence it was possible to define three different processing regimes: phosphate ablation (up to 116 J/cm2), zinc ablation (up to 288 J/cm2) and zinc melting (at 375 J/cm2). 3D profilometry was used to assess both the roughness and depth parameters corresponding to each regime. The brightness was estimated from 450 to 800 nm by reflectance studies. Consequently, a long-lasting grey scale was attained envisaging in- and outdoor decorative uses.
publisher ELSEVIER SCI LTD
issn 0143-8166
year published 2018
volume 108
beginning page 78
ending page 86
digital object identifier (doi) 10.1016/j.optlaseng.2018.04.018
web of science category Optics
subject category Optics
unique article identifier WOS:000437068200009
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journal impact factor 3.388
5 year journal impact factor 2.915
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