LASER-INDUCED SURFACE MODIFICATIONS ON ZRO2 CERAMICS

Citation
G. Nicolas et al., LASER-INDUCED SURFACE MODIFICATIONS ON ZRO2 CERAMICS, Applied surface science, 110, 1997, pp. 289-292
Citations number
6
Categorie Soggetti
Physics, Condensed Matter","Chemistry Physical","Materials Science, Coatings & Films
Journal title
ISSN journal
01694332
Volume
110
Year of publication
1997
Pages
289 - 292
Database
ISI
SICI code
0169-4332(1997)110:<289:LSMOZC>2.0.ZU;2-4
Abstract
Zirconia is widely used as a solid electrolyte due to its high ionic c onductivity and as a biocompatible material, and tailoring its propert ies is of great importance. In the present paper, experimental results are presented on modifications of surface properties of ZrO2 ceramics doped with 3% of Y2O3 exposed to radiation of either an excimer KrF ( lambda = 248 nm) or ArF laser (lambda = 248 nm), pulse duration of 15- 20 ns in air, The modification of porosity of irradiated areas and its diffuse reflectance spectra (DRS) are studied as a function of laser beam parameters. The morphology of laser treated zirconia ceramics alo ng with its microhardness and roughness are shown to depend significan tly on the laser fluence. The catalytic activity of laser treated zirc onia ceramics towards the electroless deposition of Cu and Ni is analy zed with respect to DRS modifications.