Accueil > La Recherche > Axes & Equipes > Matière Molle & Verres > Equipe : Physique des Verres > Thème : Mécanismes d’endommagement des verres à l’échelle nanométrique
The damage mechanisms involve a complex interplay between chemical reactions and transport problems under strong stress gradients in the neighborhood of glass-environment interfaces (confined or not). The effect of structural and chemical alterations on the local elastic properties and stress fields must also be accounted properly.
The damage mechanisms are investigated at the bulk level by spectroscopic techniques, at the nanometer scale by AFM observations and at the molecular level by numerical modeling. This will allow in turn understanding the size effect on these properties. A special attention will be devoted to modeling the densification behavior of anomalous and normal glasses under hydrostatic pressure, as well as the influence of the water contents.
Current researches
PERMANENTS | NON PERMANENTS |
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Atomic-Spring-like Effect in Glassy Silica-Helium Composites br ![]() Auteur(s): Bowron Daniel T., Keen David A., Kint M., Weigel C., Ruffle B., Konczewicz L., Contreras S., Coasne Benoit, Garbarino Gaston, Beaudhuin Mickael, Haines Julien, Rouquette Jerome (Article) Publié: The Journal Of Physical Chemistry C, vol. 126 p.5722-5727 (2022) |
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Pseudospin-phonon pretransitional dynamics in lead halide hybrid perovskites ![]() Auteur(s): Hehlen B., Bourges Philippe, Ruffle B., Clement S., Vialla R., da Cunha Ferreira Afonso, Ecolivet Claude, Paofai Serge, Cordier Stéphane, Katan Claudine, Létoublon Antoine, Even Jacky
(Article) Publié:
Physical Review B, vol. 105 p.024306 (2022)
Texte intégral en Openaccess : |
Involved researchers : M. Ciccotti, M. George, A. Grimaldi, G. Pallares, F. Lechenault
The investigations on the slow crack propagation in silicate glasses are based on an original experimental (...)
Involved researchers : M. Ciccotti, M. George, A. Grimaldi, G. Pallares (Collaboration L. Wondraczek, E. Charlaix)
The environmental condition at the crack tip has a determinant effect on the (...)
Involved researchers : M. Ciccotti, M. George, G. Pallares (Collaboration C. Marlière, F. Célarié)
The slow advance of a crack in soda-silicate glasses was studied at nanometer scale by in-situ and (...)
Involved researchers : M. Ciccotti, M. Foret, C. Genix, M. George, B. Hehlen, B. Rufflé, C. Weigel
The efforts of development of high resolution spatially resolved spectroscopic techniques is (...)
Involved researchers : M. Foret, B. Hehlen, B. Rufflé, H. Tran (PhD), C. Weigel
Because of their dominant brittle character, glasses experience plasticity only under high pressure or high stress (...)