Graphene harder than diamond: Study

As we know that the integral scientific community is atwitter about a surprising discovery by scientists that the combination of two graphene layers could create a lightweight material that is bulletproof. At the City University of New York, Scientists team at Advanced Science Research Centre discovered that by combining no more than two layers of graphene, they would be able to create an ultra-thin material that, when it is struck by a fast-moving projectile like a bullet, it suddenly hardens and protects the wearer.

The query most of the people may be that what is graphene. It is a sheet of a single layer of carbon atoms that are arranged in a hexagonal fashion. As graphene is the most active material that has ever been tested and it very efficiently conducts heat and electricity, it also has some incredibly unusual properties, said the scientists. Back in 1962, it was first observed by an electron microscope, but until 2004 it wasn’t that scientists were able to isolate and characterize graphene.

Professor of physics at the ASRC Elisa Riedo said that this is the thinnest film with the stiffness and the hardness of diamond ever created. Previously, when we tested graphite or a single atomic layer of graphene, we would apply pressure and feel a very soft film. But when the graphite film was explicitly two-layers thick, abruptly they realised that the material under pressure was becoming extremely hard and as stiffer than bulk diamond, explained by Riedo

Associate professor of chemistry at CUNY, Angelo Bongiorno developed the theory for creating a diamond. Graphite and diamonds are both made entirely of carbon, but the atoms are arranged differently in each material, giving them distinct properties such as hardness, flexibility, and electrical conduction. Their new technique allows us to mould graphite so that it can take on the beneficial properties of a diamond under specific conditions, he said.

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