Lawrence Livermore National Laboratory



Core

High-performance materials, devices, components and assemblies enabled by innovative design tools and novel manufacturing techniques.

Mission Support

Stockpile Stewardship Science; Bio/Chem Security and Explosives; Energy Security and Climate Change; Cyber Security, Space.

Strengths

  • Simulation — Extensive capabilities in material simulation and predictive performance– multi-scale, multi-physics modeling
  • Synthesis — Tailored synthesis of custom feedstocks and source materials
  • Characterization — Broad competencies in material characterization, precision metrology, nondestructive evaluation and prototype testing
  • Manufacturing — Precision machining and assembly of complex parts, unique microfabrication infrastructure for exploration and development of custom processes, growing array of custom and commercial additive manufacturing tools
  • Micro and Nanotechnology — Materials, devices, instruments, and systems that require micro or nanofabricated components, including microelectromechanical systems (MEMS), electronics, photonics, micro- and nanostructures, and micro- and nanoactuators


Engineers are researching novel feedstocks and manufacturing techniques for direct-ink writing. This is one element of a set of additive manufacturing technologies that can fabricate 3D microstructures with unique material properties.


This cellular alumina microlattice architecture exhibits high stiffness and low weight. It was fabricated using Projection Microstereolithography with a feedstock material of photopolymer loaded with alumina nanoparticles. Subsequent thermal post-processing to remove the polymer binder left only the densified alumina.


Conductive carbon and silicone are formulated into an ink and used to print the structure shown. The carbon based ink is able to conduct electrical signals while still having the capability to flow and print using the Direct Ink Write technique. Inset shows spanning of filaments over many times their diameter, while still retaining the shape of the extrusion nozzle.


A steel honeycomb structure embedded in a solid frame can be produced rapidly by LLNL's commercial powder bed metal additive manufacturing capability. Current research focuses on optimization of the manufacturing processes and understanding processing-performance relationships of the materials produced by this promising technology.


A surface enhanced raman spectroscopy (SERS) substrate built with an array of 100 nanometer diameter tapered nanopillars has been shown to increase sensitivity of SERS devices.


Micro scale pillar-based neutron detector developed and tested in the field – The efficiency of the device scales, as predicted by models.



In the works

An integrated, computational approach for accelerating the development of advanced materials and manufacturing processes for national security drivers.

  • Stockpile Stewardship — Sensors, replacement materials, functionalized components, fast diagnostic systems, streamlined manufacturing techniques, target manufacturing
  • Inertial Confinement Fusion — Next-generation target materials and fabrication techniques
  • Energy Security — Energy storage devices, unique fracking propants, tailored chemistry materials for carbon sequestration
  • Intelligence — Chemical, biological, radiologic and nuclear sensors and detectors





Manufacturing Website




Additive Micromanufacturing for Engineered Materials Movie



Contacts

Diane Chinn