Numéro
J. Phys. IV France
Volume 03, Numéro C7, Novembre 1993
The 3rd European Conference on Advanced Materials and Processes
Troisiéme Conférence Européenne sur les Matériaux et les Procédés Avancés
Page(s) C7-1607 - C7-1616
DOI http://dx.doi.org/10.1051/jp4:19937252
The 3rd European Conference on Advanced Materials and Processes
Troisiéme Conférence Européenne sur les Matériaux et les Procédés Avancés

J. Phys. IV France 03 (1993) C7-1607-C7-1616

DOI: 10.1051/jp4:19937252

Interfaces and interfacial mechanics : influence on the mechanical behavior of ceramic matrix composites (CMC)

J. LAMON

Laboratoire des Composites Thermostructuraux, UMR - 47 CNRS-SEP-UB1, 3 allée de la Boëtie, 33600 Pessac, France


Abstract
The influence of fiber/matrix interactions on the mechanical behavior of ceramic matrix composites is examined on glass matrix composites and mainly on composites made by chemical vapor infiltration (CVI) of a fiber preform by a SiC matrix. Then the relationships between interfaces and features of the stress-strain behavior are highlighted on microcomposite specimens using experimental data and predictions from a model based upon fracture statistics. Finally the incidence of interfaces on fracture toughness is discussed on 2D SiC/SiC composites. It is shown that rather strong interfaces provide both strong and tough 2D woven fiber reinforced composites.



© EDP Sciences 1993