Patent ID: 7691211

Claim:
Method for generating nanostructures to obtain, in an area on the surface of a metal piece, a nanostructure layer of defined thickness, using a sealed enclosure provided with actuating means, said method comprising a first projection step that includes at least the following steps: i) projecting within said enclosure, at a given speed, for a given duration, a given quantity of spherical balls if given dimensions onto a first determined impact point in the area of a surface of the piece to be treated, for a given duration; ii) projecting said spherical balls from a predetermined distance so that the angles of incidence of the spherical bails for the same determined impact point are variable; said spherical balls being projected via a nozzle of the actuating means, said nozzle being mounted on an axis of rotation; performing a second projecting step of repeating said two steps, with a shifting, so as to obtain a new determined impact point; and repeating the second projecting step to further determine impact points, so that impact points, as a group, cover the entire surface of the piece to be treated to produce said nanostructure layer.