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Tube-based Nanostructure
Tube-based nanostructures are nanolattices made of connected tubes and exhibit nanoscale organization above the molecular level. Lattices Lattices are structures formed of arrays of uniformly sized cells. Ceramic lattice nanostructures have been formed using hollow tubes of titanium nitride (TiN). Using vertex-connected, tessellated octahedra with 7-nm hollow struts with elliptical cross-sections and wall thickness of 75-nm produced approximately cubic cells 100-nm on a side at a scale of up to 1 cubic millimeter. The material's relative density was of the order of 0.013 (similar to aerogels). Compression experiments with multiple deformation cycles revealed tensile strengths of 1.75 GPa without failure. The material was constructed from a digital design with direct laser writing onto a photopolymer using 2-photon lithography followed by conformal deposition of TiN using atomic layer deposition and a final etching to remove the polymer. An earlier metallic tube lattice produ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nanolattices
A nanolattice is a synthetic porous material consisting of nanometer-size members patterned into an ordered lattice structure, like a space frame. The nanolattice is a material class that emerged after 2015. Nanolattices redefine the limits of the material property space. Despite consisting of 50-99% air, nanolattices are mechanically robust because they take advantage of size-dependent properties generally seen in nanoparticles, nanowires, and thin films. The most typical mechanical properties of nanolattices include strength, damage tolerance, and stiffness. Thus, nanolattices have a wide range of potential applications. History Driven by the evolution of 3D printing techniques, nanolattices aiming to exploit beneficial material size effects through miniaturized lattice designs were first developed in the mid-2010s,. Nanolattices are the smallest man-made lattice truss structures and a class of metamaterials that derive their properties from both their geometry (general metamat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |