The present project is motivated by the flawed nature of current engineering ceramics and it aims at studying and developing new lightweight damage-tolerant ceramics. Designing cellular materials with a hierarchical structure similar to natural lightweight materials combined with the use of damage-tolerant ceramics as building blocks could provide new lightweight materials with unprecedented properties.
The aim of MAD_Ceramics is to explore the chemical deposition techniques of MAX phases compounds, a class of damage-tolerant ceramics, by opening the “black box” of their synthesis and understanding the intricate phenomenon occurring at different length scales. This technique is today unexplored while it is the only viable method for deposition on complex structures, like hierarchical architectures. The hierarchical architectures to be coated will be lattice materials with designed periodic spatial architecture obtained by additive manufacturing.
The possibility of marrying the structural control on several length scales like the one found in nature with the damage-tolerance, refractory nature and high stiffness of MAX phases could break the existing limitations in terms of strength-to-weight and stiffness-to-weight ratios and could lead to the development of totally new range of applications.
An experimental approach based on innovative thin film chemical vapor deposition techniques of the MAX phases together with in situ observation of the synthesis will be integrated with numerical modeling of the deposition and investigation of mechanical properties at the relevant length scales. The material synthesis techniques proposed in this project are novel yet based on existing proofs.
Monsieur Frédéric Mercier (Sciences et Ingenierie, des MAtériaux et Procédés)
L'auteur de ce résumé est le coordinateur du projet, qui est responsable du contenu de ce résumé. L'ANR décline par conséquent toute responsabilité quant à son contenu.
SIMAP Sciences et Ingenierie, des MAtériaux et Procédés
Aide de l'ANR 213 112 euros
Début et durée du projet scientifique : - 48 Mois