METHOD FOR PRODUCING CARBON-GRAPHITE COMPOSITE MATERIAL Russian patent published in 2021 - IPC C22C47/08 B22F3/26 C25D3/34 

FIELD: metallurgy, composite materials.

SUBSTANCE: invention relates to the field of metallurgy, namely to the creation of composite materials by impregnating a porous frame. A method for producing a carbon-graphite composite material includes vacuum degassing of a porous carbon-graphite billet in a copper electrolyte solution, applying a two-layer electroplating coating containing an inner copper layer to it, and impregnating the porous billet with a matrix lead alloy melt under the influence of excessive pressure due to thermal expansion of the melt when heated above the liquidus temperature of the lead alloy, while the outer layer of the electroplated coating is made of lead deposited by electrolysis from an electrolyte containing 200 g/l of lead borofluoride, 50 g/l of hydrofluoboric acid and 1.0 g/l of joiner's glue.

EFFECT: higher quality of carbon-graphite composite materials thanks to increasing its strength.

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