A good deal of carbon composites such as carbon fiber reinforced plastics (CFRP) is used for new aircraft manufacturing to improve fuel consumption. At the same time much scrap waste of the CFRP come out in the manufacturing. Now we developed the recycling technology which takes out carbon fiber from the CFRP scrap. The recycling carbon fiber provides a low-cost and high-performance CFRP again. This composite cultivates new world of the engineering plastics.
In a CVD process using solid carbon source, changing the gas composition and substrate position growth of hexagonal single crystal graphene is obtained. Further, it is possible to synthesis a continuous graphene film by this method.
The nanopores of activated carbon and carbon nanotube can provide in-pore surperhigh pressure effect of several GPa order for molecules. This in-pore superhigh pressure effect can be applied to high pressure materials synthesis even without an autoclave for application of the superhigh pressure. This method is scalable and mass amount of products can be obtained using the neclei procued in nanopores.
A new self-piercing rivet (SPR) has been proposed to mechanically fasten CFRP/CFRP or CFRP/metal plates. The SPR consists of a rivet body and two flat washers. The two flat washers are used to suppress delamination in the CFRP at the point of piercing. The advantages of the modified SPR for fastening CFRP are instantaneous process time and low cost. Any pretreatments such as surface treatments or hole drilling are not required to fasten CFRP.