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This Photon-Printed Carbon Is Stronger Than Diamond

Scientists might have reached the theoretical limit of how strong this particular material can get, designing the first-ever super-light carbon nanostructure that’s stronger than diamond.
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Carbon is a famously versatile element in the diversity of structures it can take, from graphite like in the tip of a pencil to a diamond. Both are just pure carbon, but with atoms arranged in different patterns.

The latest development in the nanoworld of carbon comes from a team that has designed something called carbon plate-nanolattices. Under a scanning electron microscope, they look like little cubes, and the math indicated that this structure would be incredibly strong, but it’s been too difficult to actually make, until now.

The team’s success was made possible by a 3D printing process called two-photon polymerization direct laser writing, which is essentially 3D printing on the level of atoms and photons.

Find out more about this technique and what the result could mean for the future of medicine, electronics aerospace and more in this Elements.

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Curious about two-photon lithography? The clip at 1:30 shows a microscopic castle designed by Daniela Mitterberger and Tiziano Derme being printed using this technique. The castle is so tiny that it fits ON THE TIP OF A PENCIL! How cool is that?! This art project is a collaboration between researchers at the Institute of Materials Science and Technology of the TU Wien (Technische Universität Wien, Austria), and design studio MAEID. A recent TU Wien spin-off UpNano is now commercializing this high-resolution 3D printing technology and materials. You can check out more impressive structures by UpNano on Twitter at https://twitter.com/upnano_gmbh and explore MAEID Studio at https://www.maeid.com/

Plate-nanolattices at the theoretical limit of stiffness and strength
"Here, we present a new class of nanolattices, constructed from closed-cell plate-architectures."

UCI-led team designs carbon nanostructure stronger than diamonds
"Nanolattices hold great promise for structural engineers, particularly in aerospace, because it’s hoped that their combination of strength and low mass density will greatly enhance aircraft and spacecraft performance."


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