MIT researchers reported a remarkably strong, low-density graphene structure in 2017, but they did not establish it as the strongest and lightest material on Earth. Their result depended on a carefully designed porous geometry: a modeled sample had 5 percent of steel’s density and 10 times its strength, according to MIT. The finding is a research result, not a commercially available material or a direct, like-for-like test of a full-scale graphene object against steel.
What MIT actually reported
In a January 6, 2017 report, MIT described a team’s work on a three-dimensional architecture made from small graphene flakes compressed and fused into a sponge-like form. Its headline was carefully qualified: “Researchers design one of the strongest, lightest materials known.” The report did not claim a universal record across every material and test condition. MIT News’ 2017 account describes the methods and reported result; MIT’s Department of Civil and Environmental Engineering identifies the team as Gang Seob Jung, Min Jeong Kang, Zhao Qin, and Markus Buehler and emphasizes the role of geometry.
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How to interpret the strength and density figures
MIT reported that one modeled sample had 5 percent the density of steel and 10 times its strength. Those figures describe the researchers’ result in the context of their simulations and tests—not a general property of all graphene, or proof from a full-scale graphene object tested against steel in identical conditions.
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Clear out junk files and repair common Windows errorsFree Scan →Scan for outdated or missing drivers - takes under a minuteDriver Scan →The team made enlarged 3D-printed models of different configurations and mechanically tested their tensile and compressive properties. They also simulated mechanical response; MIT reported that the test and simulation results matched. The distinction matters: the printed models let the team examine the architecture, but they were not full-scale graphene structures.
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Why the shape matters more than the headline suggests
The structure’s geometry, rather than graphene chemistry alone, is central to the result. The researchers used a curved, gyroid-like architecture that can carry loads efficiently. MIT compared the principle to shaping a sheet of paper into a tube, which makes it stronger in one direction than a flat sheet.
Markus Buehler, then head of MIT’s Department of Civil and Environmental Engineering and the McAfee Professor of Engineering, said: “The geometry is the dominant factor. It’s something that has the potential to transfer to many things.” MIT said the approach might be adaptable to other materials, including polymers or metals. That is a proposed direction, not evidence that those materials already have the same measured performance.
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What the researchers thought the architecture might be useful for
The 2017 report discussed possible future uses where low weight and high strength could be valuable, including structural applications, bridge materials, insulation, and filtration. These were possibilities raised by the researchers, not products or deployed infrastructure.
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Repair common Windows errors and clear accumulated junk for a smoother, more stable PC - no reinstall needed.Free scan · no reinstallThe same report also set a physical limit on one more speculative idea: at extremely low density, the structure would not have enough strength to resist surrounding air pressure and would collapse. That rules out treating it as a durable helium replacement for balloons.
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Don’t confuse it with MIT’s later polymer material
MIT’s February 3, 2022 spotlight described a separate polymer material as stronger than steel and as light as plastic. It is not the 2017 graphene architecture: the materials, dates, and reported claims differ. MIT’s 2022 spotlight covers that separate work.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Can you buy it or reproduce the experiment?
The 2017 report does not identify a purchasable graphene product or name a printer model. It says the team used a high-resolution, multi-material 3D printer to make enlarged models for mechanical testing. That establishes the printer as a research tool; it does not mean that a consumer printer can print graphene or reproduce the study’s result.
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