Abstract: A method for coating a composite substrate characterized includes a—preparing a sol-gel composition by mixing in an aqueous medium: 1—of at least one metal alkoxide of formula (I) M(OR1), 2—in the presence of at least one organo alkoxysilane of formula (II) R3mSi(OR2)4-m, 3—and in the presence of optional oxide or metal particles, 4—by mixing the composition in order to allow condensation of the organic-inorganic hybrid networks, b—depositing at least one underlayer of the sol-gel composition obtained in step a) on the composite substrate; c—depositing at least one subsequent coating layer on the coated composite substrate obtained in step b).

Abstract: Coatings, for example polymer coatings or sol-gel coatings, including at least one layer of micrometric, individualised and mesostructured spherical particles. The particles having been created and loaded with at least one element selected from corrosion-inhibiting functional molecules and corrosion-inhibiting functional nano-objects, by a method having non-dissociable nebulization-heating steps that are continuous in a single reactor. The coatings form an anti-corrosion system, having mechanical strength and/or for coloring. The coatings are applicable, in particular, in the field of protecting light aeronautical alloys against corrosion.

Abstract: The present invention relates to mesostructured particles that have the particular property of being spontaneously individualized, and that include anticorrosion agents. The invention also relates to a process for preparing these particles, and also to materials obtained by inclusion of these particles in matrices.

Abstract: Coatings, for example polymer coatings or sol-gel coatings, including at least one layer of micrometric, individualised and mesostructured spherical particles. The particles having been created and loaded with at least one element selected from corrosion-inhibiting functional molecules and corrosion-inhibiting functional nano-objects, by a method having non-dissociable nebulization-heating steps that are continuous in a single reactor. The coatings form an anti-corrosion system, having mechanical strength and/or for coloring. The coatings are applicable, in particular, in the field of protecting light aeronautical alloys against corrosion.

Abstract: The coating for inspecting the internal integrity of a structure, includes an optically active material, and a coating matrix associated with the optically active material and configured to crack when the matrix receives an impact beyond a preset pressure, the optically active material being visible when such a crack is present.