▎ 摘 要
NOVELTY - Manufacture of graphene involves purging hydrocarbon gas and auxiliary gas into a variable pressure coupled plasma apparatus, applying intermediate frequency electromagnetic wave and dissolving the hydrocarbon gas. The dissociation rate of the hydrocarbon gas is more than 95%. USE - Manufacture of graphene for graphene material for composite material (all claimed). DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) graphene material, which comprises graphene sheets provided in a non-parallel arrangement; and (2) composite material, which comprises 0.5-50 pts. wt. graphene with respect to 100 pts. wt. metal powder.