[john70t]

https://interestingengineering.com/news/strongest-metamaterial-3d-printed-australi

The researchers used a 3D printing approach called laser powder bed fusion to achieve this metamaterial design. This approach uses a high-powered laser beam to melt layers of metal powder into place.

The double lattice design ensured that it halved the stress at the weak points in the design, and any cracks in the design were also deflected along the structure, thereby improving its toughness.

The team tested a titanium lattice cube made using this approach. It was 50 percent stronger than the cast magnesium alloy WE54, the strongest alloy known to humanity and used widely in aerospace applications. The team is still working on perfecting the metamaterial and hopes that it can improve its temperature-bearing limit to 1,112 Fahrenheit (600 degrees Celsius) and potentially add more applications to its list.