This article forms part of 3D printing metamaterial and will further explore nano 3D print technology. This 3D printing technology is used to create individual electronic and biomedical nanoscale devices. They are commonly used for research. Researchers at the moment are trying to find ways to modify microscopic properties by printing micro-objects.
Lawrence Livermore National Laboratory created a new plan to explore all these possibilities. Using a projection micrography technique (PSL), a plan can hold 10,000 times its own weight. Like most metamaterials we looked at in this series, this power is based on the structure’s geometry.
The LLNL team employed a system to project UV light from the LED onto a micromirror. After reflecting the light through a series ocular elements, it reduced the beam’s size, then projected it onto the slot for photopolymerization. Researchers examined a range of lattice designs and determined that density is a key factor in the stability and strength.
Polymer resin is the main material but researchers have the capability to produce metal and ceramic micro-lattice structures. They do this by adding metal, ceramic, and other materials to gums then using thermal energy to burn the polymer. The result is durable but lightweight.
LLNL takes this information and extends it in different ways. LLNL employs this technology in order to examine how to make helmet designs more efficient by 3D printing and metamaterials. 3D printed thin layers of 3D polymer polymer were used to compare traditional elastomers with the metamaterials. Elastomers are slower in ageing than 3D printed ones. Studies have also been done on copper-polymer mixtures which shrink when heated.
Cheng Zhu, an Lawrence Livermore National Laboratory researcher, and Wen Chen a former Postdoctoral Fellow in the laboratory created an ink that contained silver and gold bits. The printed 3D pieces were heated up to condense silver particles and make a gold-silver alloy. For porous, gold-colored parts, the 3D parts go into a chemical bath.
Yet, these nanoscale systems could be made more efficient. Max Planck Institute of Light Sciences, Germany has invented a method that could be called an “advancess to atomic-level print.” This technology allows light to be coupled with just one atom or one nanoparticle using a parabolic reflection, which results in lightwave clipping.
In this way, both the space time distribution of light and either the polarization direction or oscillation path of the electron field can be focused onto the object on a smaller scale that the wavelength of sunlight. It has been proven that this laser beam can trap an atom and create nanostructures.
This powder can be used for nano- or microscale 3D printing, although it may have some useful applications in handling the microworld of cells. However, much of the research has been done to apply the results at the macro-scale. Scientists are currently working in teams to make these small-scale objects that can then be deployed outdoors. Virginia Tech is studying how structure changes under seven order of magnitude magnified. Researchers at Virginia Tech have created thousands of tiny metal pieces made from nanoscale hollow tubes. These parts are 400% more elastic than other similar products.
LLNL’s own commitment to combining the best of both traditional and nanoscale stereolithography via large-area, projection microscopic Stereolithography has allowed for an expansion in nanoimprinting. Bryan Moran is the creator of LAPSL. Each tile has many details. Together they make a movie. “This tool allows you to make large parts faster, which is very useful.
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