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Photograph of glass sample unplated on one side (left) and plated with nickel phosphorous on the other (right)
Method for designing and fabricating patterned metallic traces on glass surfaces

LLNL researchers have continued to develop their pioneering DIW 3D-printed glass optics technology that allows for the 3D printing of single- and multi-material optical glass compositions in complex shapes. This LLNL invention further proposes incorporating dopants (including, but not limited to TiO2 and Pd) into slurries and inks for 3D printing of glass components that can then be directly…

A digital twin (right) is the virtual representation of real-world objects and processes (left)
Digital Twin of Structured Light Metrology

LLNL’s novel approach utilizes a number of techniques to improve reconstruction accuracy:

  • Better coding scheme-based techniques
  • Hardware-assisted techniques
  • Adaptive fringe projection techniques
  • Multi-exposure based techniques

The method requires specific calibration procedures and control of the hardware, which is achieved through a digital twin…

A cold-spray chamber is shown during deposition, with the nozzle at the top of the image and a near-full density sample being fabricated in the center. Particles of the brittle thermoelectric bismuth telluride are accelerated to more than 900 meters per second, or almost Mach 3, in inert gas and directed onto a copper surface, laying down the strips that form the basis of a functioning thermoelectric generator to harvest waste heat. Graphic by Jacob Long/LLNL
Versatile Cold Spray
Versatile Cold Spray (VCS) enables deposition of brittle materials, such as thermoelectrics, magnets, and insulators, while retaining their functional properties. Materials can be deposited on substrates or arbitrary shapes with no requirement to match compositions. The VCS system is low cost, easily portable, and easy to use. VCS has been developed in a collaboration between Lawrence Livermore…