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Related Experiment Video

Updated: May 27, 2026

Indirect Fabrication of Lattice Metals with Thin Sections Using Centrifugal Casting
08:32

Indirect Fabrication of Lattice Metals with Thin Sections Using Centrifugal Casting

Published on: May 14, 2016

Ultralight metallic microlattices.

T A Schaedler1, A J Jacobsen, A Torrents

  • 1HRL Laboratories Limited Liability Company, Malibu, CA 90265, USA. taschaedler@hrl.com

Science (New York, N.Y.)
|November 19, 2011
PubMed
Summary
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We developed ultralight metallic microlattices using a novel fabrication method. These materials offer excellent mechanical properties and energy absorption for advanced applications.

Area of Science:

  • Materials Science
  • Nanotechnology
  • Mechanical Engineering

Background:

  • Ultralight cellular materials are crucial for applications like thermal insulation and energy damping.
  • Existing materials often lack the desired combination of low density and high mechanical performance.

Purpose of the Study:

  • To present a new class of ultralight materials based on periodic hollow-tube microlattices.
  • To characterize the mechanical properties and fabrication of these novel materials.

Main Methods:

  • Fabrication involved self-propagating photopolymer waveguide prototyping to create a template.
  • The template was coated with nickel via electroless plating and then etched away.
  • Characterization of density, compressive strain recovery, and Young's modulus scaling.

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Generation of Scalable, Metallic High-Aspect Ratio Nanocomposites in a Biological Liquid Medium
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Generation of Scalable, Metallic High-Aspect Ratio Nanocomposites in a Biological Liquid Medium

Published on: July 8, 2015

Related Experiment Videos

Last Updated: May 27, 2026

Indirect Fabrication of Lattice Metals with Thin Sections Using Centrifugal Casting
08:32

Indirect Fabrication of Lattice Metals with Thin Sections Using Centrifugal Casting

Published on: May 14, 2016

Determining the Mechanical Strength of Ultra-Fine-Grained Metals
05:04

Determining the Mechanical Strength of Ultra-Fine-Grained Metals

Published on: November 22, 2021

Generation of Scalable, Metallic High-Aspect Ratio Nanocomposites in a Biological Liquid Medium
13:34

Generation of Scalable, Metallic High-Aspect Ratio Nanocomposites in a Biological Liquid Medium

Published on: July 8, 2015

Main Results:

  • Achieved ultralight metallic microlattices with densities as low as 0.9 mg/cm³.
  • Demonstrated complete recovery after >50% compressive strain and elastomer-like energy absorption.
  • Observed a unique Young's modulus scaling (E ~ ρ²) attributed to structural hierarchy.

Conclusions:

  • Periodic hollow-tube microlattices represent a promising new direction for ultralight materials.
  • The observed properties and scaling laws differ significantly from stochastic ultralight foams.
  • Structural hierarchy across multiple scales is key to the exceptional performance of these materials.