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2. CMC behavior
2.1 Mechanical engineering
Unlike metal-matrix composites (MMCs), in which the fibers are primarily intended to stiffen a ductile matrix, for CMCs, as well as for long-fiber C/Cs and CMOs (organic-matrix composites), the matrix ensures adequate mechanical strength in bending, shear and compression for a generally dense (and more or less entangled for woven) fibrous network. What's more, in the case of CMCs, an additional synergy is created between the fibers and the matrix, as the fibers "defragilize" an initially brittle ceramic matrix, provided an appropriate interphase is introduced.
The fact that CMCs are produced from a texture consisting of yarns, themselves composed of fibers (or monofilaments), gives these materials an anisotropic character, both mechanical...
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CMC behavior
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Bibliography
Websites
Thermostructural Composites Laboratory http://www.lcts.u-bordeaux1.fr/
Thermostructural composites: exceptional materials http://www.herakles.com/innovation/composites-thermosructuraux/? lang=fr
...Events
HTCMC, International Conference on High Temperature Ceramic Matrix Composites http://ceramics.org/meetings/9th-international-conference-on-high- temperature-ceramic-matrix-composites-and-global-forum-on-...
Standards and norms
- Test method for tensible stress-strain behaviour of continuous fibre reinforced composites at room temperature - ISO 15733 - 2014
- Mechanical properties of ceramic composites at high temperature – Determination of compression properties - ISO 14544 - 2012
- Ceramic composites – Thermophysical properties: Determination of thermal diffusivity (Based on EN 1159-3:2003) - ISO 19629 - 2013
- Advanced technical...
Patents
HERAUD (L.), COTTERET (J.), BONNET (C.), CHRISTIN (F.), NASLAIN (R.), HAGENMULLER (P.), Porous carbonaceous part densified in situ by chemical vapor deposition of refractory materials other than carbon, and method of manufacture, Patent FR2401888A1 (March 30, 1979).
MAISTRE (M.), Nouvelle structure composite, et procédé et matrice destinés à la fabrication d'une telle structure, Patent FR2498733A1 (July...
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