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Leveraging machine learning to refine material models for fusion applications
July 14, 2025 • To enable future innovative designs for fusion platforms on the Z machine, a Sandia LDRD team developed an automated framework for constructing material models. This directly addressed the challenge of creating comprehensive material models that can leverage machine learning and integrate data from multi-fidelity datasets, something vital for uncertainty quantification...

Improving assurance of high-consequence systems using formal methods and automated reasoning 
July 14, 2025 • Error from imperfect computer representations of numbers when visualizing a sphere at 1km and 20,000km distance from an observer. Computers typically represent numbers one of two ways: fixed-point (via integers) and floating-point numbers. Floating point provides improved efficiency and productivity, but errors can accumulate if not managed carefully. Error from...

Advancing understanding of acoustic signals in underground tunnel structures
July 14, 2025 • Sandia researchers are using remote data to determine the structure of underground tunnels. Specifically, their research focuses on understanding acoustic resonance in these structures, specifically how changes in tunnel configurations affect the acoustic signals observed from a distance. The potential benefits of this work were presented in May 2024 at...

Advancing turbulence models for hypersonic flows using machine learning 
July 14, 2025 • Sandia researchers utilized machine learning techniques to address the limitations of Reynolds-averaged Navier-Stokes (RANS) turbulence models in predicting hypersonic turbulent flows, with a particular emphasis on inaccuracies in wall heating predictions for flows involving shock boundary layer interactions. This research has led to the development of neural-network-based machine learned turbulence...

Confirming dismantlement of nuclear warheads while protecting sensitive information
July 14, 2025 • When it comes to nuclear arms control, verification is essential. By detecting unique metastable radionuclide signatures in non-nuclear material disposition pathways, an LDRD research team created a reliable verification measure to confirm dismantlement of nuclear warheads without disclosing sensitive information. Researcher Peter Marleau led an LDRD team that developed a...

Developing engineered probiotics to combat respiratory infections
July 14, 2025 • Sandia researchers are focused on protecting soldiers and citizens from biological threats by creating innovative solutions to prevent and treat infectious diseases, especially those affecting the respiratory system. Advances in synthetic biology have led to the concept of “living countermeasures,” where cells are genetically engineered to act as sensors and...

Brain-based computing for ND solutions
June 4, 2025 • New neuromorphic computing system arrives at Sandia THE HARDWARE BEHIND THE BRAIN — NERL Braunfels consists of three chassis, or frames, each capable of holding up to 18 boards with 48 chips on each board. Photo by Craig Fritz. As artificial intelligence-capable computing systems continue to evolve, so do challenges facing...

Improving understanding of microbial roles in permafrost carbon release
June 2, 2025 • As permafrost thaws, it exposes ancient organic matter that microbes can use as fuel. This process contributes to the release of gases like carbon dioxide, methane (CH₄) and volatile organic compounds (VOCs). In areas like the Yedoma permafrost, which holds large amounts of frozen organic material, the formation of thermokarst...

Accelerating phase field simulations to understand liquid-metal dealloying
March 3, 2025 • Liquid metal dealloying. The initial species fields (cA and cB at t=0) are contaminated with low-amplitude random white noise (left fields). Given the chaotic nature of the dealloying process, the initial noise perturbation eventually leads to widely different solid phase fields at late time (e.g., right fields, at t=6⁢μs, after 6 million time steps). When...

Imaging gas-phase methyl radicals
March 3, 2025 • Positive and negative correlations of measured gas-phase methyl and formaldehyde with predicted surface coverages Scientists at Sandia are studying how certain chemical reactions happen on surfaces, especially when using special techniques that allows them to see what is occurring while the reactions are taking place. This is important because many...

Stability of disconnections in solute atmosphere
March 3, 2025 • Disconnections, such as the disconnection dipole shown here from relaxed molecular dynamics simulations, are found on many grain boundaries and postulated to regulate boundary mobility. (b) An atomic-scale map of the segregation energy of dilute Ag atoms in a Cu matrix illustrating a zone of strong segregation (blue) for preferred...

Enhancing metasurface performance potential
March 3, 2025 • By rotating the 𝐶3 symmetry breaking deformation ( 𝜑), the angular positions of the Dirac points and the corresponding polarization singularities for both bands can be controlled. New uses for metasurfaces in both regular and quantum optics are creating a need for better control over how light is polarized, especially...

Deeper insight into radiation-formed defects
March 3, 2025 • Scientists at Sandia have created a new way to create atomic structures that show the important features of different materials. In the past, scientists could only recreate certain characteristics, like how atoms are arranged in a random mixture, using small crystal structures. Now, they have introduced a new method called...

Lignin processing with machine learning approaches
March 3, 2025 • The schematic diagram for screening of solvents for lignin dissolution. Using ionic liquids (IL) to break down and make use of lignin is really important for creating eco-friendly energy sources and a sustainable economy. Scientists at Sandia, who are part of the Joint Bioenergy Institute (JBEI), are looking closely at...

Statistical earthquake models inform understanding of material degradation at the nanoscale
December 10, 2024 • Muscovite mica, used in many materials science applications, is known for its extremely flat and flaky layers, making it highly susceptible to hostile environmental conditions. (Photo by Anastasia Ilgen) Understanding how materials will interact with their environment is crucial when selecting components for engineering applications. To help inform material selection, geologists...

Sandia deploys cutting-edge Cerebras CS-3 testbed for AI workloads
November 12, 2024 • Technician positioning Cerebras wafer enclosure for installation in Kingfisher. Photo taken by Craig Fritz. In a partnership just reaching two years, Sandia and Cerebras Systems have unveiled a cluster composed of four Cerebras CS-3 systems to be used as a Sandia testbed, that will expand research into AI workloads for...
Technician positioning Cerebras wafer enclosure for installation in Kingfisher.

Sandia and Google unleash new possibilities in quantum computing
August 21, 2024 • Electronic stopping power calculations involve simulating the passage of a single ion (blue arrow) passing through a degenerate plasma background (red and yellow). The passage of the ion kicks up excitations of the plasma in its wake (green), slowing the ion down. This visualization is from a classical simulation executed...

Sandia scientist testifies how AI is helping with science innovation
July 23, 2024 • Sandia’s Jennifer Gaudioso testifies during a Senate committee hearing June 4 that DOE data and supercomputing capabilities position U.S. national labs to shape future AI initiatives. (Image captured from hearing video) Sandia’s Jennifer Gaudioso testified before Congress on how scientists at U.S. national laboratories are poised to elevate artificial intelligence...

Transformational capabilities demonstrated by Sandia at AI Expo
June 17, 2024 • Danny Gomez from Sandia watches as Senator Martin Heinrich experiences the immersive extended reality environment of JARVIS. (Photo courtesy of John Feddema) Ten national laboratories, including Sandia, shared one of the largest booths at the AI Expo for National Competitiveness from May 7-8 in Washington, D.C. The new conference provided...

Sandia partners with NVIDIA to advance memory technologies for high performance computing
May 8, 2024 • Concept rendering of advanced memory packaging. (Image courtesy of NVIDIA) Sandia National Laboratories has announced a new project with NVIDIA to pursue critical research and development of memory technologies. This collaborative agreement between the three National Nuclear Security Administration (NNSA) laboratories, Sandia National Laboratories, Lawrence Livermore National Laboratory and Los...
Concept rendering of advanced memory packaging

Sandia partners with NextSilicon and Penguin Solutions to deliver ‘first of its kind’ runtime reconfigurable accelerator technology
May 8, 2024 • This printed circuit board assembly displays the Maverick ASIC and supporting circuitry. (Photo courtesy of NextSilicon) Sandia National Laboratories, leading a tri-lab consortium with Lawrence Livermore National Laboratory (LLNL) and Los Alamos National Laboratory (LANL), announces a partnership with NextSilicon Inc. and Penguin Solutions to deliver the next Advanced Architecture Prototype...
A computer board featuring first of its kind runtime reconfigurable accelerator technology

Neuromorphic computing for nuclear deterrence solutions: Sandia partners with German startup SpiNNcloud
May 8, 2024 • New server board integrating 48 SpiNNaker2 chips through a seamless energy-proportional infrastructure.(Image courtesy of SpiNNcloud) Sandia National Laboratories has announced a partnership with AI and neuromorphic computing company, SpiNNcloud. Leveraging a next generation system, SpiNNaker2, this partnership seeks to advance neuromorphic architecture. Funded through NNSA’s Advanced Simulation and Computing (ASC) program,...
Results 26–50 of 101