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Article Dans Une Revue Journal of the European Ceramic Society Année : 2004

Mechanical strength improvement of a soda-lime-silica glass by thermal treatment under flowing gas

S. Deriano
  • Fonction : Auteur
S. Malherbe
  • Fonction : Auteur
J. Rocherulle
G. Duisit
  • Fonction : Auteur
G. Jezequel
  • Fonction : Auteur

Résumé

The incidence of thermal treatments in air, N-2 or NH3, on the mechanical properties of a soda-lime silica glass is presented. The effects of the treatment time and temperature were studied. Ammonia treatments lead to the most important compositional changes near the surface: SIMS and XPS techniques revealed a significant depletion in alkali and alkaline earth cations and a limited incorporation of nitrogen. IR-reflexion spectroscopy provided evidence for compositional changes near the surface, from a typical soda-lime glass towards a silica glass composition. The affected surface layer is typically about 1 mum deep and leads to significant changes of the local mechanical properties. Nanoindentation measurements showed that hardness increases whereas Young's modulus decreases both by similar to10% in a 300 nm thick surface layer. A significant increase of the indentation fracture toughness (K-c) from 0.72 to 0.89 MPa.m(1/2) was also noticed. The different processes leading to the cationic migration and to the changes of the glass surface properties were discussed. (C) 2003 Elsevier Ltd. All rights reserved.

Dates et versions

hal-01148114 , version 1 (04-05-2015)

Identifiants

Citer

S. Deriano, Tanguy Rouxel, S. Malherbe, J. Rocherulle, G. Duisit, et al.. Mechanical strength improvement of a soda-lime-silica glass by thermal treatment under flowing gas. Journal of the European Ceramic Society, 2004, 24 (9), pp.2803--2812. ⟨10.1016/j.jeurceramsoc.2003.09.019⟩. ⟨hal-01148114⟩
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