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Materials Science
X-ray technique provides a new tool for nuclear forensics investigations
Researchers at Lawrence Livermore National Laboratory (LLNL) are experts in nuclear forensics: the art and science of extracting information about the provenance and history of nuclear materials. Now, they have a new technique to add to their toolkit. In a study published in the Journal of Nuclear Materials, LLNL and Lawrence Berkeley National Laboratory scientists…
California awards grant to LLNL and DarmokTech to develop recyclable sodium batteries
Lithium-ion batteries are everywhere: in phones, computers and more. The technology primarily uses liquid electrolytes, which facilitate charge moving from electrode to electrode, but they can also leak, short-circuit the battery and — in some cases — cause fires. In broader applications such as electrical grid storage, lithium scarcity also makes it difficult to rely on…
Miniaturized ion traps show promise of 3D printing for quantum-computing hardware
Researchers at Lawrence Livermore National Laboratory (LLNL), the University of California (UC) Berkeley, UC Riverside and UC Santa Barbara have miniaturized quadrupole ion traps for the first time with 3D printing — a breakthrough in one of the most promising approaches to building a large-scale quantum computer. Quadrupole ion traps have four electrode poles that create…
New book documents optics innovations that were integral to ignition
The National Ignition Facility (NIF) at Lawrence Livermore National Laboratory (LLNL) is a chandelier “holding a system of high-precision optics,” according to a newly published book. But unlike a delicate chandelier illuminating a room, NIF’s thousands of optical components are able to resist or survive damage even under the enormous strain of amplifying and directing NIF…
Controlling water cuts energy costs for ethylene production
Maintaining American energy independence requires minimizing reliance on foreign countries to produce commodity chemicals and fuels. Using carbon dioxide electrolyzers to produce valuable chemical precursors such as ethylene provides one way to diversify domestic feedstocks. But, so far, these devices have been limited by their low efficiency, which makes them energy…
Carbon nanotube ‘smart windows’ offer energy savings
Half of the sun's radiant energy falls outside of the visible spectrum. On a cold day, this extra infrared light provides additional warmth to residential and commercial buildings. On a warm day, it leads to unwanted heating that must be dealt with through energy-intensive climate control methods such as air-conditioning. Visibly transparent “smart windows” that can…
LLNL’s Luis Zepeda-Ruiz wins prestigious award from American Association for Crystal Growth
At a conference held this summer, the American Association for Crystal Growth (AACG) recognized Lawrence Livermore National Laboratory (LLNL) scientist Luis Zepeda-Ruiz with its Gentile Service Award for “long and meritorious service to the crystal growth community.” Named after Tony Gentile, who spent many years serving AACG, this honor has only been bestowed four times…
LLNL demonstrates new model that explains plutonium’s peculiar behavior
Normally, materials expand when heated. Higher temperatures cause atoms to vibrate, bounce around and take up a larger volume. However, for one specific phase of plutonium — called delta-plutonium — the opposite inexplicably occurs: it shrinks above room temperature. As part of its national security mission, Lawrence Livermore National Laboratory (LLNL) aims to predict the…
LLNL pushes frontier of fusion target design with AI
Researchers at Lawrence Livermore National Laboratory (LLNL) have reached a milestone in combining AI with fusion target design by deploying AI agents on two of the world’s most powerful supercomputers to automate and accelerate inertial confinement fusion (ICF) experiments. Part of an AI framework called the Multi-Agent Design Assistant (MADA), LLNL scientists and…
LLNL’s Sichi Li appointed to JACS Au Early Career Advisory Board
JACS Au, an open-access journal from the American Chemical Society, has selected Lawrence Livermore National Laboratory (LLNL) staff scientist Sichi Li to serve on its 2025–2026 Early Career Advisory Board. JACS Au publishes high-impact, cutting-edge research across the full spectrum of chemistry and related disciplines. The Early Career Advisory Board is composed of…
LLNL researchers train liquid droplets to play tic-tac-toe
Artificial intelligence and high-performance computing are driving up the demand for massive sources of energy. But neuromorphic computing, which aims to mimic the structure and function of the human brain, could present a new paradigm for energy-efficient computing. To this end, researchers at Lawrence Livermore National Laboratory (LLNL) created a droplet-based platform…
First-of-its-kind microscope takes 3D ghost images of nanoparticles
Ghost imaging is like a game of Battleship. Instead of seeing an object directly, scientists use entangled photons to remove the background and reveal its silhouette. This method can be used to study microscopic environments without much light, which is helpful for avoiding photodamage to biological samples. So far, quantum ghost imaging has been limited to two dimensions,…
Self-driving lab to automate the discovery of novel alloys
Pure metals like aluminum or titanium don’t always have the desired material properties — strength, hardness, ductility or corrosion resistance — for a given application. For this reason, researchers seek out novel alloy solutions, mixing a primary metal element with a series of other elements to create a material with tailored properties for uses in aerospace, defense,…
High explosives in slow motion: freezing molecules in place shows chemical reactions
Safe and effective high explosives are critical to Lawrence Livermore National Laboratory’s (LLNL) mission of stockpile stewardship. It is relatively simple to study the composition of such material before a detonation or examine the soot-like remnants afterward. But the chemistry in between, which dictates much of the detonation process, evades experimental interrogation…
Turning captured carbon into natural gas could provide cost-competitive energy storage
Solar and wind energy are highly variable, dependent on the day, weather and location of the facilities. At times, they can generate more electricity than is needed, but they can also fall short when demand is at its peak. Unfortunately, any extra energy created by these sources is often wasted, as there are few methods that adequately store it long-term. To improve energy…
Scientists solve the 50-year mystery of widely used high explosive TATB
A team of scientists at Lawrence Livermore National Laboratory (LLNL), in collaboration with the U.S. Naval Research Laboratory (NRL), has made a major breakthrough in understanding how one of the world’s safest and most widely used explosives, TATB, breaks down under extreme conditions. TATB (1,3,5-triamino-2,4,6-trinitrobenzene) is a powerful explosive that is prized for…
Johanna Schwartz and collaborators selected for Scialog award
The Scialog: Automating Chemical Laboratories initiative has awarded Lawrence Livermore National Laboratory (LLNL) scientist Johanna Schwartz $60,000 to pursue automated design of next-generation membranes for fuel cells. The award comes as one of seven collaborative projects funded by the Research Corporation for Science Advancement (RCSA), the Arnold and Mabel Beckman…
Maximizing pressure in laser-driven shock experiments
Researchers at Lawrence Livermore National Laboratory (LLNL) and the University of California, San Diego have tested two alternative tamper materials, yttrium aluminum garnet (YAG) and gadolinium gallium garnet (GGG), for their potential use in laser-driven shock experiments. Tamper materials, also called confining media, are placed on the surface of a target during laser…
A hot topic: How temperature fuels energy loss in fuel cells
By splitting water molecules, fuel cells can turn electricity into hydrogen fuel. Running in the opposite direction, they consume hydrogen fuel to cleanly power multiple sectors. Typically, heat is a key ingredient for achieving high energy conversion efficiencies that can beat out combustion-based engines. But like a dripping pipe, fuel cells can leak efficiency. In a new…
Five LLNL postdocs selected to attend 2025 Lindau Nobel Laureate Meetings
Five Lawrence Livermore National Laboratory (LLNL) postdoctoral researchers have been selected to participate in the prestigious 2025 Lindau Nobel Laureate Meetings. Ian Colliard, Nicholas Cross, Caspar Donnison, Vidia Gokool and Jonas Kaufman will join young scientists from around the world to learn from Nobel Prize laureates through academic panels, lectures, group…
