▎ 摘　　要

NOVELTY - Preparation method of carbon nano tube/graphene/pyrolytic carbon composite material, involves (i) obtaining the graphene/nickel foam; (ii) using injection chemical vapor deposition method to in-situ grow carbon nano-tube in the graphene/nickel foam to obtain the carbon nano tube/graphene multidimensional hybrid reinforcing body; and (iii) using precursor dipping cracking method to fill pyrolytic carbon in carbon nano tube/graphene multidimensional hybrid reinforcing body, preparing carbon nano tube/graphene/pyrolytic carbon composite material. USE - Method for preparing carbon nano tube/graphene/pyrolytic carbon composite material used in high technology field such as aviation and spaceflight. ADVANTAGE - The method enables to prepare carbon nano tube/graphene/pyrolytic carbon composite material that has excellent light weight, high strength and toughness, multifunctional carbon-based composite material. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a carbon graphene carbon composite material