Advances in self-healing ceramic matrix composites

2014 ◽  
pp. 369-409 ◽  
Author(s):  
F. Rebillat
Keyword(s):  
Ceramic Matrix Composites ◽  
Ceramic Matrix ◽  
Self Healing ◽  
Matrix Composites

scholarly journals Image-Based Numerical Modeling of Self-Healing in a Ceramic-Matrix Minicomposite

Ceramics ◽  
2019 ◽  
Vol 2 (2) ◽  
pp. 308-326 ◽  
Author(s):  
Grégory Perrot ◽  
Guillaume Couégnat ◽  
Mario Ricchiuto ◽  
Gerard L. Vignoles
Keyword(s):  
Healing Process ◽  
Ceramic Matrix Composites ◽  
Ceramic Matrix ◽  
Self Healing ◽  
Matrix Composites ◽  
Glass Forming ◽  
Refractory Ceramic ◽  
Realistic Image ◽  
New Generation ◽  
Healing Model

Self-healing, obtained by the oxidation of a glass-forming phase, is a crucial phenomenon to ensure the lifetime of new-generation refractory ceramic-matrix composites. The dynamics of oxygen diffusion, glass formation and flow are the basic ingredients of a self-healing model that has been developed here in 2D in a transverse crack of a mini-composite. The presented model can work on a realistic image of the material section and is able to simulate the healing process and to quantify the exposure of the material to oxygen: a prerequisite for its lifetime prediction. Crack reopening events are handled satisfactorily, and healing under cyclic loading can be simulated. This paper describes and discusses a typical case in order to show the model capabilities.

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