Lorenzo Valdevit

Lorenzo Valdevit

University of California, Irvine

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Copyright University of California, Irvine 2017

Gallery

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    Cube-octet carbon nano-lattice

    Cube-octet carbon nano-lattice with specific strength higher than diamond (false colorized SEM image)
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    SiOC microvillar cracked upon unloading

    This SiOC micropillar, fabricated by 2pp-DLW of a pre-ceramic resin followed by pyrolysis, was loaded to 20% compressive strain and deformed plastically. The cracks developed upon unloading.
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    Carbon nanospinodal

    Carbon spinodal shell nanolattice fabricated by two-photon-polymerization of IP-Dip, followed by pyrolysis. The SEM image is false colorized.
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    Carbon nanolattice

    Carbon nanolattice fabricated by two-photon-polymerization of IP-Dip, followed by pyrolysis.
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    Carbon nanolattice

    Detail of carbon nanolattice fabricated by two-photon-polymerization of IP-Dip, followed by pyrolysis. The bar diameter is approximately 125 nm.
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    Carbon nano-dogbone

    Test coupon for characterization of tensile properties of Carbon nanostructures fabricated by two-photon polymerization Direct Laser Writing (DLW) of IP-Dip, followed by pyrolysis.
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    Nanolattice Fabrication by Direct Laser Writing

    Schematic of the two-photon polymerization Direct Laser Writing (DLW) technique for fabrication of nano-scale metamaterials and complex nano-structures.
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    Nodal crack modeling in a hollow lattice

    Finite Elements (FE) simulation of crack propagation around the node of a hollow lattice subjected to external compression,
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    Shell spinodal metamaterial

    Nanoscale shell-based metamaterial with spinodal topology, fabricated by two-photon polymerization Direct Laser Writing (DLW).
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    Solid spinodal metamaterial

    Nanoscale metamaterial with solid spinodal topology (50% density), fabricated by two-photon polymerization Direct Laser Writing (DLW).
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    Multistable Shape-Reconfigurable Architected Materials

    Cover Art for our paper on Multistable Shape-Reconfigurable Architected Materials
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    3D Printed Multi-stable Mechanical Metamaterial

    Multi-stable mechanical metamaterial in closed (left) and open (right) configurations, 3D printed by material jetting with a Stratasys Objet Connex 3.
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    Multi-stable mechanical metamaterial

    Implementation of a 3D multi-stable mechanical metamaterial, fabricated by a combination of laser cutting (for the bars) and stereolithography (for the joints).
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    Topology Optimization of Multi-phase Metamaterials

    Example of optimized 2D topology for high stiffness, low density and high damping under wave propagation.
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    Hybrid Microlattice

    Metal/polymer lattice material fabricated at HRL Laboratories