Microscopic morphology of MLG/Ti composite materials

Multilayer Graphene (MLG), as a novel two-dimensional carbon nanomaterial, has higher elastic modulus and fracture strength, making it an ideal nanoreinforcement phase for lightweight metal matrix composites. The use of traditional ball milling technology to mix metal graphene composite powders has limitations. Flake powder metallurgy technology increases the specific surface area of the metal powder, improves the contact probability of graphene on the surface of the metal powder, greatly improves the dispersibility of graphene in the matrix, and thus provides the possibility for preparing high content graphene reinforced composite materials. This article first uses high-energy ball milling to prepare MLG/Ti mixed powders and prepares MLG/Ti composite materials through low-temperature and high-pressure SPS preforms and high-temperature heat treatment. We heated the sample to 950°C and held it for ten minutes and 60 minutes respectively. From a microscopic perspective, the particle size distribution is 0-45 μm During the heat treatment process, the m sample decomposes into small equiaxed crystals. The particle size distribution is 45-125 μm and 75-180 μm. The sample of m, as heat treatment proceeds, the debris diffuses towards the interface and basically maintains the layered morphology.