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Superficies y vacío
Print version ISSN 1665-3521
Abstract
MAISTERRENA-EPSTEIN, R.; CAMACHO-LOPEZ, S.; ESCOBAR-ALARCON, L. and CAMACHO-LOPEZ, M. A.. Nanosecond laser ablation of bulk Al, Bronze, and Cu: ablation rate saturation and laser-induced oxidation. Superf. vacío [online]. 2007, vol.20, n.3, pp.1-5. ISSN 1665-3521.
In this work we report about the characteristics of nanosecond laser ablation, in atmospheric air, of bulk Al, Bronze, and Cu. Average per pulse laser ablation rate and its dependence on ablation depth is presented for these three metals. We will demonstrate and discuss some distinctive features of the ablation saturation effect of the above metals. We will also present results on laser-induced oxidation of the metals which results off the ablation event. We studied the laser-induced oxidation effect through energy-dispersive X-ray spectroscopy (EDS or EDX). The EDS results presented here show that the laser irradiated metals oxidize during the ablation process; the metals oxidize to different degrees showing a strong dependence on the net delivered laser fluence.
Keywords : Metals; Pulsed laser ablation; Laser micromachining; Laser-induced oxidation.