Each material is formulated so as to provide a device with specific properties and performances that meet a unique specification.
This material can be modified at the same time chemically, on its composition or even on its surface state, to meet the specificity which is requested of it.
During its life cycle, the material faces numerous constraints which, in some cases, can alter its performance by revealing phenomena of non-compliance or failures..
To anticipate the behavior and evolution of a material or a system, it is essential to characterize it, that is to say to analyze its structural nature at a given initial time.