Method for metallizing surfaces by means of metal powders

Details Method for metallizing surfaces by means of metal powders Method for metallizing surfaces by means of metal powders

C - Chemistry, Metallurgy

23

C

C23C 18/30 (2006.01) H05K 3/10 (2006.01) H05K 3/42 (2006.01) H05K 1/03 (2006.01) H05K 3/18 (2006.01)

Patent

CA 2061296

ABSTRACT OF THE DISCLOSURE "Method for metallizing surfaces by means of metal powders" The method for metallizing the surface of dielectric materials accordingto the invention comprises a first step wherein a metal powder, the size of the grains of which is comprised between 10 and 5000 nm, is deposited and then incorporated into the surface of the dielectric material. In a second step of the method, the dielectric material which is so impregnated with metal, is immersed into an autocatalytic bath to coat the impregnated zones of the material with a layer of the metal contained in the bath in a thickness which is proportional to the immersion time. This method enables to metallize materials such as oxides, polymers and composites containing these oxides and/or these polymers. The characteristics of the metal deposits are controlled, on the one hand, by the type of metal, and the size and the geometry of the metal powder grains and, on the other hand, by the type and the structure of the dielectric materials coated with these deposits.

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