METHOD OF MAKING WORKPIECES FROM CARBON-CARBON COMPOSITE MATERIALS Russian patent published in 2011 - IPC C04B35/83 

FIELD: chemistry.

SUBSTANCE: invention relates to carbon-carbon composite materials (CCCM). The method of producing carbon-carbon composite materials with density of 1.2-2.1 g/cm³ involves applying protective coatings on carbon filler and/or saturation with carbon-containing compositions, making modules from fibre carbon filler materials grouped in a given order, wherein the thickness of the wall of the module is equal to at least the thickness of the carbon filler. The frame is then assembled by merging modules into a single packet, followed by cold or hot pressing and/or sewing with a thread or rods on one of the coordinates of the workpiece coinciding or not coinciding with the alignment of the filler in the module until achieving density of 0.1-0.8 g/cm³. CCCM material is obtained by saturating the frame with pyrocarbon in the medium of gaseous or liquid hydrocarbons.

EFFECT: high strength and density of CCCM.

8 cl, 11 dwg, 2 tbl