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Article Dans Une Revue Journal of Non-Crystalline Solids Année : 2004

The indentation fracture toughness (K-C) and its parameters: the case of silica-rich glasses

S. Deriano
  • Fonction : Auteur
A. Jarry
  • Fonction : Auteur
S. Hampshire
  • Fonction : Auteur

Résumé

The fracture toughness of several glasses, including soda-lime-silica and aluminosilicate glasses, was measured by both the indentation fracture (IF) and the single-edge notched beam (SENB) techniques. The flow densification mechanism occurring during indentation for silica-rich compositions leads to discrepancies between the two methods. The influence of the indentation load and the post-indentation fatigue duration on the indentation on the crack length and on the fracture toughness measurement were investigated. Fatigue curves (V-K) were obtained directly from indentation experiments and fatigue parameters were derived. The sub-critical crack growth resistance was found to be improved by increasing the silica content. In comparison with the studied oxide glasses, a Y-SiAlON oxynitride glass exhibits much greater fatigue resistance. The fatigue phenomenon has a major effect on the estimation of K-C from indentation-cracking measurements. (C) 2004 Published by Elsevier B.V.

Dates et versions

hal-01148112 , version 1 (04-05-2015)

Identifiants

Citer

S. Deriano, A. Jarry, Tanguy Rouxel, Jean-Christophe Sangleboeuf, S. Hampshire. The indentation fracture toughness (K-C) and its parameters: the case of silica-rich glasses. Journal of Non-Crystalline Solids, 2004, 344 (1-2), pp.44--50. ⟨10.1016/j.jnoncrysol.2004.07.021⟩. ⟨hal-01148112⟩
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