▎ 摘　　要

NOVELTY - Forming (M1) graphene involves rotating drum within evacuated chamber; coating the drum with layer of tantalum-silicon-nitride (TaSiN); coating the layer of TaSiN on the drum with layer of copper; electro-polishing the layer of copper; heating portions of the layer of copper using focused sunlight; coating the heated portions of the layer of copper on the drum with layer of graphene; monitoring grain growth of the graphene layer; and removing the layer of copper and the layer of graphene from the layer of TaSiN on the drum by heating other portions of the layer of copper. USE - For manufacturing graphene; as system for manufacturing graphene; as method of three dimensional (3D) printing graphene; and for manufacturing nanoyarn (claimed). ADVANTAGE - The system operates multiple chemical vapor deposition (CVD) (having plasma and substrate heating) systems to deposit substrates that provides the highest purity graphene layer deposited on it; and provides a mass production CVD system that is capable of producing a continuous sheet of graphene, and has multiple different CVD processes, thus permits printing graphene like a 3D. DETAILED DESCRIPTION - Manufacturing (M1) graphene involves rotating a drum within an evacuated chamber; coating the drum with a layer of tantalum-silicon-nitride (TaSiN); coating the layer of TaSiN on the drum with a layer of copper; electro-polishing the layer of copper; heating portions of the layer of copper using focused sunlight; coating the heated portions of the layer of copper on the drum with a layer of graphene; monitoring grain growth of the graphene layer; if the monitored grain growth of the graphene layer indicates more than one grain at a particular location, then reducing heating of the particular location to isolate the grain growth of the particular location and recording the particular location in a memory; if the monitored grain growth of the graphene layer indicates a single grain surrounded by another single grain at another particular location, then controlling the direction of the rotation of the drum to permit any portions of the layer of copper proximate the particular location missing a grain of graphene to grow a grain of graphene; and removing the layer of copper and the layer of graphene from the layer of TaSiN on the drum by heating other portions of the layer of copper using focused sunlight. INDEPENDENT CLAIMS are included for the following: (1) manufacturing (M2) graphene involving rotating a drum within an evacuated chamber; coating the drum with a catalyst layer; heating portions of the catalyst layer; coating the heated portions of the catalyst layer with a layer of graphene; monitoring grain growth of the graphene layer; if the monitored grain growth indicates unacceptable grain growth, then taking corrective action; and removing the catalyst layer and the layer of graphene from the drum by heating other portions of the catalyst layer; (2) system (S1) for manufacturing graphene comprising a housing defining a chamber; a rotable drum positioned within the chamber having an exterior surface coated with a catalyst layer; a motor operably coupled to the drum; a motor controller operably coupled to the motor for controlling a rate and direction of rotation of the drum; a source of carbon positioned within the chamber proximate the drum; a first heating source for heating a first exterior portion of the catalyst layer on the drum; a monitoring device positioned proximate the first exterior portion of the drum for monitoring a grain growth of graphene on the exterior portion of the catalyst layer on the drum; a second heating device for heating a second exterior portion of the catalyst layer on the drum; and a controller operably coupled to the motor, the source of carbon, the first heating source and the second heating source; where the controller is adapted to control the direction and rate of rotation of the motor as a function of the grain growth of graphene on the exterior portion of the catalyst layer on the drum; (3) method (M3) of three dimensional (3D) printing graphene involving rotating a continuous surface within an evacuated chamber; coating the surface with a catalyst layer; heating portions of the catalyst layer; coating the heated portions of the catalyst layer with at least one layer of graphene; monitoring grain growth of the graphene layer; if the monitored grain growth indicates unacceptable grain growth, then taking corrective action; and removing the catalyst layer and the layer of graphene from the surface by heating other portions of the catalyst layer; (4) manufacturing nanoyarn involving rotating a drum within an evacuated chamber; coating the drum with a catalyst layer; heating portions of the catalyst layer; coating the heated portions of the catalyst layer with a nanoforest; monitoring growth of the nanoforest; if the monitored growth indicates unacceptable growth, then taking corrective action; removing the catalyst layer and the nanoforest from the drum by heating other portions of the catalyst layer; and making nanoyarn using the nanoforest.