The Centre-Val de Loire region boasts a number of "academic" research centers: the CNRS, the universities of Orléans and Tours, and the INSA Centre Val de Loire, all of which have a very high level of scientific and technical expertise in the field of multimaterials. The MATEX project brings together 9 laboratories from these organizations, ensuring the complementarity of their academic skills. A strong regional specificity lies in its ability to design, develop, test and study material combinations for operation under "extreme" conditions.