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Proceedings Paper

Chemical composition and growing kinetics of titanium nitrided layers under CO2 laser irradiation
Author(s): Patricia Laurens; Herve L'Enfant; Thierry Dubois; Marie Christine Saint Catherine
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Paper Abstract

The growth and morphology of nitrided layers formed during the solid phase nitriding of pure titanium by CO2 laser were investigated. In the case of a laser treatment carried out under isothermal conditions, it was shown that CO2 photons irradiation of the substrate does not produce any specific assisted nitride growth: nitriding kinetics, nitride composition and structure were similar to those obtained after nitriding using a classical heating system. From the nitriding kinetics, nitrogen diffusion coefficients were determined using an analytical solution of Fick's equation. This allows to plot the evolution of the nitrogen concentration with respect to depth and to compare calculated profiles to those determined experimentally by Nuclear Reaction Microanalysis.

Paper Details

Date Published: 18 August 1997
PDF: 9 pages
Proc. SPIE 3097, Lasers in Material Processing, (18 August 1997); doi: 10.1117/12.281104
Show Author Affiliations
Patricia Laurens, Lab. d'Application des Lasers de Puissance (France)
Herve L'Enfant, Lab. d'Application des Lasers de Puissance (France)
Thierry Dubois, Lab. d'Application des Lasers de Puissance (France)
Marie Christine Saint Catherine, Ctr. de Recherches et d'Etudes d'Arcueil (France)

Published in SPIE Proceedings Vol. 3097:
Lasers in Material Processing
Leo H. J. F. Beckmann, Editor(s)

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