▎ 摘　　要

NOVELTY - Three-dimensional network-like graphene-reinforced titanium-based composite material comprises titanium or titanium alloy as titanium matrix, and graphene as reinforcing phase, where in the microstructure of composite material, graphene is uniformly distributed around the titanium matrix particles forming a three-dimensional network-like structure, i.e. titanium base particles are filled in the grid of graphene three-dimensional network-like structure and fully dense. USE - Three-dimensional network-like graphene-reinforced titanium-based composite material used as aerospace or naval ship component material comprising spacecraft structural component material, carrier rocket pressure vessel material, satellite structural component material, missile body component material, airplane aviation engine structural material, or ship naval corrosion-resistant structural material (all claimed). ADVANTAGE - The three-dimensional network-like graphene-reinforced titanium-based composite material overcomes the conventional milling method, which is easy to introduce impurity, and difficult to realize graphene uniform coating. It has high strength, high forming property and excellent comprehensive mechanical properties. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of the three-dimensional network-like graphene-reinforced titanium-based composite material comprising taking polyvinyl alcohol (PVA) powder, adding deionized water, heating at 50-80 degrees C, magnetically agitating to obtain 3-8 wt.% PVA aqueous solution, adding titanium matrix particles, stirring for 1-8 hours, obtaining PVA-coated titanium particles, using deionized water to remove excess PVA in titanium matrix particles, 60-100 degrees C vacuum drying for 6-10 hours, obtaining material A, crosslinking reaction by taking graphene powder, adding acetone, conducting needle ultrasonic oscillation for 30-60 minutes to obtain uniformly dispersed solution, taking the material A, adding acetone to prepare dispersion, dropwise adding the graphene dispersion, stirring for 1-48 hours, stirring, filtering,vacuum drying for 1-10 hours at 40-120 degrees C, completely drying and sieving, sintering molding by according to the size parameters of the product, removing the PVA in high purity argon gas furnace, performing discharge plasma sintering, and hot press sintering or vacuum pressureless sintering.