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Video Graphene is said to be the wonder material of our age, but it’s largely a 2D affair. Now scientists have made 3D structures out of the stuff that will be an engineer’s wet dream.
Since the first atom-thick strips of graphene were produced, the substance has shown remarkable properties, including extraordinary strength and conductivity. It also has more unusual uses. Now a team at MIT has used heat and pressure to fuse flakes of graphene sheets into 3D shapes that have 4.6 per cent the density of steel and are 10 times as strong.
Materials - Vehicles - Buildings - Devices - Markus
“They are not very useful for making 3D materials that could be used in vehicles, buildings, or devices,” admitted Markus Buehler, MIT’s McAfee Professor of Engineering. “What we’ve done is to realize the wish of translating these 2D materials into three-dimensional structures.”
The goal of the research, funded in part by the US Office of Naval Research and the Department of Defense, was to discover whether or not graphene could be used as a bulk material to build strong 3D structures that were lighter than air.
Team - Reports - Journal - Science - Advances
The team reports in the journal Science Advances this month that modeling showed that lighter-than-air structures aren't possible without the surrounding air pressure crushing the graphene.
Back to the drawing board. To construct a practical 3D...
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