Graphene began to be studied from the last century. Some physical properties were observed, as examples, high electrical conductivity and its tensile strength a hundred times greater than steel. Only in 2004, two researchers from Manchester University managed to extract material from a graphite sample, using the technique of mechanical exfoliation. The new discovery, using adhesive tape to separate the layers graffiti, He encouraged the scientific community to speculate new ways of synths.
Brazil has one of the largest natural graphite reserves in the world (almost 45% the total found in the world), for extraction base composition of this promising material, thus being, in a prime position opposite the other countries in the world market.
O graphene, definitely, It is revolutionizing innovation in construction. Much stronger than steel and thinner than a hair, It is an incredibly light material, flexible, two-dimensional (2D) because it is made of a carbon flake with a thickness atom. It is also an efficient heat conductor with a higher thermal conductivity than copper, however, transparent. As for traction, it is too strong and its bending stiffness is higher, and thus, exorbitant greater strength compared to a similar thick steel sheet. The tensile stresses show that graphene can be lengthened up to 23% of its original length without causing cracks or fractures.
The range of industries where the graphene research is making an impact is substantial: engineering, energy, medicine, transport, electronics, defense and desalination industry. As for the coating of metal structures, graphene is effective for protecting and maintaining the unchanged properties of the parts. Steel plates are quickly corroded by being immersed in brine. In contrast, plates coated with graphene are protected by more than a month. The coating promotes a hydrophobic film and electrically conductive, thus avoiding, corrosion by repelling water and slow electrochemical reactions.
In short, the coating of metal structures with nanocomposite based on graphene can mitigate the costs of projects and increase the resistance of the materials used.
Graphene has been considered the material of the future by many experts. It is a kind of very thin sheet which consists of carbon and has a thickness of one atom.
Márcio Estefano, Prof. PhD
lidiane Bazaglia
Congratulations on the content of this blog, did a great
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Dear Marcos,
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Happy Prosperous Year!
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SMC Engineering and Consulting Team