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Materials—Polymer-theory-problem

Scientists at Oak Ridge National Laboratory have conducted a series of breakthrough experimental and computational studies that cast doubt on a 40-year-old theory describing how polymers in plastic materials behave during processing.

Eugene Dumitrescu, Ben Lawrie, Matthew Feldman, and Jordan Hachtel (from left) have conducted investigations aimed at controlling the dissipative nature of quantum systems and materials. The cathodoluminescence microscope used in their work appears at rig
Scientists at the Department of Energy’s Oak Ridge National Laboratory are conducting fundamental physics research that will lead to more control over mercurial quantum systems and materials. Their studies will enable advancements in quantum computing, sensing, simulation, and mater...
Small modular reactor computer simulation

Nuclear scientists at Oak Ridge National Laboratory are retooling existing software used to simulate radiation transport in small modular reactors, or SMRs, to run more efficiently on next-generation supercomputers. ORNL is working on various aspects of advanced SMR designs through s...

Using neutrons, an ORNL research team studied the protein structure of bacteria-produced enzymes called beta-lactamases by examining one of them to better understand how resistant bacteria behave.
New insights into certain catalytic enzymes formed by bacteria to break down antibiotics may lead to the design of drugs better equipped to combat resistant bacteria. Scientists at Oak Ridge National Laboratory used neutron crystallography at the lab’s Spallation Neutron Source to st...
Shown as green spheres, microcapsules containing the polymer manganoporphyrin, a newly developed antioxidant (green), the natural antioxidant tannic acid (yellow), and a binding material (blue), can be analyzed for stability and efficiency with neutrons.
Many natural and synthetic antioxidants help defend the body against oxidative stress—a biochemical imbalance that can damage cells and lead to illnesses such as diabetes, Alzheimer’s and cancer. However, these materials can become unstable and less effective over time. A new ...
Researcher Rob Schmidt and his team are using neutrons at HFIR’s CG-1D imaging instrument to study the development of dendrites with hope of improving the design of next-generation lithium ion batteries. Dendrites are thin microscopic fibers that can carr
Researchers are using neutrons to study a battery material that could offer a safer alternative to the flammable liquid component found in most types of lithium-ion batteries. Rob Schmidt, a postdoctoral researcher at the Department of Energy’s Oak Ridge National Laboratory, a...
The Weyl semimetal state is induced when the opposing motions of the electrons cause the Dirac cones to split in two (illustrated on the left by outward facing electrons, opposite the inward facing electrons on the right).
The observation of an abnormal state of matter in a two-dimensional magnetic material is the latest development in the race to harness novel electronic properties for more robust and efficient next-generation devices. Neutron scattering at the Department of Energy’s Oak Ridge ...
Joseph Lukens, Pavel Lougovski and Nicholas Peters (from left), researchers with ORNL’s Quantum Information Science Group, are examining methods for encoding photons with quantum information that are compatible with the existing telecommunications infrast
A team of researchers led by the Department of Energy’s Oak Ridge National Laboratory has demonstrated a new method for splitting light beams into their frequency modes. The scientists can then choose the frequencies they want to work with and encode photons with qu...
ORNL researchers Todd Toops, Charles Finney, and Melanie DeBusk (left to right) hold an example of a particulate filter used to collect harmful emissions in vehicles.

Researchers are looking to neutrons for new ways to save fuel during the operation of filters that clean the soot, or carbon and ash-based particulate matter, emitted by vehicles. A team of researchers from the Energy and Transportation Science Division at the Department of En...