Gallery – www.valdevit.eng.uci.edu

Lorenzo Valdevit

University of California, Irvine

Gallery

Cube-octet carbon nano-lattice

Cube-octet carbon nano-lattice with specific strength higher than diamond (false colorized SEM image)
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.
Carbon nanospinodal

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

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

Detail of carbon nanolattice fabricated by two-photon-polymerization of IP-Dip, followed by pyrolysis. The bar diameter is approximately 125 nm.
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.
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.
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,
Shell spinodal metamaterial

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

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

Cover Art for our paper on Multistable Shape-Reconfigurable Architected Materials
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.
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).
Topology Optimization of Multi-phase Metamaterials

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

Metal/polymer lattice material fabricated at HRL Laboratories