METHOD FOR PRODUCING CARBON-GRAPHITE COMPOSITE MATERIAL Russian patent published in 2021 - IPC C22C47/08 B22F3/26 C25D5/54 

FIELD: metallurgy, composite materials.

SUBSTANCE: invention relates to the field of metallurgy, namely the creation of composite materials by impregnating a porous frame. The method for producing a carbon-graphite composite material includes vacuum degassing of a porous carbon-graphite billet in an electrolyte solution, applying a four-layer electroplated coating to it, impregnating it with a melt of a matrix lead alloy under the influence of excessive pressure due to thermal expansion of the melt when heated above the liquidus temperature of the lead alloy, while vacuum degassing is carried out in a solution of a nickel electrolyte containing 140 g/l of nickel sulfate, 50 g/l of sodium sulfate, 30 g/l of magnesium sulfate, 20 g/l dry boric acid, and the electroplated coating is performed by successive application of the inner nickel, intermediate zinc and silver and outer copper layers.

EFFECT: higher quality of composite materials, in particular, increased compressive strength.

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