The material has been dubbed “ultralight metallic microlattice,” and according to a news release sent out by UC Irvine, it consists of 99.99% air thanks to its “microlattice” cellular architecture.
It is so lightweight that the research team consisting of scientists at UC Irvine, HRL Laboratories and Caltech say in the peer-reviewed Nov. 18 issue of Science that it is the lightest material on Earth. As yet, no one has asked them to run a correction.
“The trick is to fabricate a lattice of interconnected hollow tubes with a wall thickness 1,000 times thinner than a human hair,” lead author Tobias Shandler of HRL said in the release.
To understand the structure of the material, think of the Eiffel Tower or the Golden Gate Bridge — which are both light and weight efficient — but on a nano-scale.
The material in the picture above is made out of 90% nickel, but Bill Carter, manager of the architected materials group at HRL, said it can be made out of other materials as well — the nickel version was just the easiest to make.
As for the uses of such a material? That’s still to be determined. Lorenzo Valdevit, UCI’s principal investigator on the project, brought up impact protection, uses in the aerospace industry, acoustic dampening and maybe some battery applications.
Aevia — Consider the Source