Property modulated materials and methods of making the same

C - Chemistry – Metallurgy – 25 – D

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C25D 3/02 (2006.01)

Patent

CA 2730229

A method of making property modulated composite materials in-cludes depositing a first layer of material having a first microstructure/nanostructure on a substrate followed by depositing a second layer of material having a second micro structure/nanostructure that differs from the first layer. Multiple first and sec-ond layers can be deposited to form a com-posite material that includes a plurality of adjacent first and second layers. By con-trolling the microstructure/nanostructure of the layers, the material properties of the composite material formed by this method can be tailored for a specific use. The mi-crostructures/nanostructures of the com-posite materials may be defined by one or more of grain size, grain boundary geome-try, crystal orientation, and a defect densi-ty.

L'invention porte sur un procédé de fabrication de matériaux composites à propriété modulée, lequel procédé comprend le dépôt d'une première couche de matériau ayant une première microstructure/nanostructure sur un substrat, suivi par le dépôt d'une seconde couche de matériau ayant une seconde microstructure/nanostructure qui diffère de celle de la première couche. De multiples premières et secondes couches peuvent être déposées pour former un matériau composite qui comprend une pluralité de premières et secondes couches adjacentes. Par le contrôle de la microstructure/nanostructure des couches, les propriétés de matériau du matériau composite formé par ce procédé peuvent être adaptées aux besoins pour une utilisation spécifique. Les microstructures/nanostructures des matériaux composites peuvent être définies par un ou plusieurs parmi la taille de grain, la géométrie de frontière de grain, l'orientation cristalline et une densité de défauts.

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