Ultralight Material invented – Model was the Eiffel Tower
A metallic Lattice Network, consisting of Tubes as finely as Hair, is now the lightest Material, which was ever developed – with a smaller Density than Air, as Researchers found out. It is super+stable and resistant. The ultralight Metal can lie even on a Breath flower, without destroying it.
The Basic Idea with Providing the Solid was to create a Material that unusually strongly, in addition, is very easy. Ultralight Materials such as Foams are often used for the Thermal Insulation or Acoustic Insulation or around Vibrations and Impacts to hold. Often such Materials are used also as a Component of Batteries and Catalysts.
The lightest Materials of the World were well-known so-called Aero Gels, also under the Name „Frozen Smoke”. They can reach a Density of only one Milligram per Cubic Centimeter, what makes them likewise easier than Air. The Problem with Materials such as Foam and Gel was so far always their unstructured Structure. Aero Gels are manufactured, by replacing the Liquid Content of Gel by Gas. Thus a Structure in the Material, which resembles a Tangle of microscopically small Pearl necklace, develops. By this unordered Structure the Material is however more unstable than in its Slug.
Now Scientists developed an ultralight weight from metallic Lattice with small Density and very regulatory Structure. That has a higher Stability and Ruggedness as well as improves Conductivenesses than the Raw Materials, reports the Specialist journal „to Science” in its November Edition.
„Our Goal is it to revolutionize easy-weighty Materials by putting on their Structure again”, so Tobias Schaedler, Boss of the Research Team of the HRL Laboratories Limited Liability Company in Malibu, opposite the Internet Magazine “innovativenews-DAILY”.
„If You times the Eiffel Tower or Golden gate bridge look at yourselves, You will state that these Buildings are unbelievably easy and stable for their Sizes. Results from its Structure – the Eiffel Tower is larger and easier than the Pyramids, which explains alone its Construction made possible”, to Schaedler. „We transfer the Structure of these Buildings to the Structures of the Materials.”
The Scientists began with a liquid Photo Polymer – a Molecule, which changes its Characteristic, if it is suspended Light. They illuminated the Photo Polymer with a Sample from ultraviolet Light, in order to produce a three-dimensional Lattice. They covered up This Structure with a gauzy metallic Film – in this Case of a nickel phosphorus connection.
In the next Step Schaedler and its Colleagues removed the Photo Polymer, by etching it away with a Caustic Solution. Thus the Researchers produced a Lattice from hollow nickel phosphorus tubes, everyone between 100 and 500 Micrometers broadly or differently expressed only one Fifth the Width of a human Hair. The Wall Thickness of these Tubes varied between 100 and 500 Nanometers, that is 1000 times thinner than a human Hair.
The Material developed in such a way contains more Air than Aero Gels with a Density of 0,9 Milligrams per Cubic Centimeter, „the Material exists to 99.9 Percent from Air, “, says Schaedler. „It is 200 times easier than Polystyrene.”
During the Attempts the Material proved as extremely flexible and straightened up also then again to its full Size, after it was pressed together around Half.
„By its Energy Absorbing Characteristics the Material can be begun for the Damping of Sound Waves, Vibrations or Impacts. We are able the Structure on different Sizes such as Millimeters to adapt Micrometers or Nanometers and we could custom-made Materials for special Ranges Of Application develop.”
The Scientists experiment at present with Grid Networks from other Materials. „It should be possible to make this Lattice Structure of all thin-layered Materials – for example from Diamond, Plastics and Ceramic(s)”, Schaedler says.