Enabling pseudo-ductility in geopolymer based glass-ceramics matrix composites by slurry dilution - IMT Mines Albi-Carmaux Accéder directement au contenu
Article Dans Une Revue Open Ceramics Année : 2021

Enabling pseudo-ductility in geopolymer based glass-ceramics matrix composites by slurry dilution

Gilles Dusserre
Thierry Cutard

Résumé

Carbon fibre reinforced composites with matrix consisting of porous glass-ceramics obtained by high temperature heat-treatment of geopolymer based material are studied. The matrix is obtained from a slurry. Several composites have been manufactured by in-laboratory stratification of pre-impregnated plies with slurries diluted at various rates. Slurry dilution changes the porosity and leads to pseudo-ductile behaviour of the composite. Dilution implies a drop of non-linearity stress threshold together with a slower decrease of the strength. An optimal dilution rate is evidenced, which exhibits high strength but lower non-linearity stress threshold, and then, a significant failure strain. The optimized prepreg material is compared with a reference composite processed by an industrial prepreg process. The origin of the pseudo-ductility is related to decohesion at the interface between tows and inter-tow matrix. RTM also provides a pseudo-ductile composite but with very low non-linearity stress threshold, in relation to poorly impregnated tows.

Domaines

Matériaux
Fichier principal
Vignette du fichier
Enabling-pseudo-ductility-in-geopolymer-based-glass-ceramics-matrix.pdf (2.55 Mo) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte

Dates et versions

hal-03272163 , version 1 (30-06-2021)

Licence

Paternité - Pas d'utilisation commerciale - Pas de modification

Identifiants

Citer

Gilles Dusserre, Anaïs Farrugia, Thierry Cutard. Enabling pseudo-ductility in geopolymer based glass-ceramics matrix composites by slurry dilution. Open Ceramics, 2021, 7, pp.100156. ⟨10.1016/j.oceram.2021.100156⟩. ⟨hal-03272163⟩
115 Consultations
78 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More