![Debjani Singh](/sites/default/files/styles/featured_square_large/public/2024-08/2024-P12408.jpg?h=8f9cfe54&itok=bP5F6U4Y)
Filter News
Area of Research
- (-) Neutron Science (66)
- Advanced Manufacturing (10)
- Biology and Environment (14)
- Clean Energy (69)
- Computational Biology (1)
- Fusion and Fission (6)
- Isotopes (23)
- Materials (59)
- Materials for Computing (16)
- National Security (16)
- Nuclear Science and Technology (11)
- Quantum information Science (2)
- Supercomputing (25)
News Topics
- (-) 3-D Printing/Advanced Manufacturing (4)
- (-) Microscopy (2)
- (-) Nanotechnology (9)
- (-) Neutron Science (64)
- (-) Polymers (1)
- (-) Space Exploration (2)
- Advanced Reactors (1)
- Artificial Intelligence (4)
- Big Data (2)
- Bioenergy (4)
- Biology (3)
- Biomedical (8)
- Biotechnology (1)
- Chemical Sciences (2)
- Clean Water (1)
- Climate Change (1)
- Computer Science (10)
- Coronavirus (8)
- Decarbonization (1)
- Energy Storage (1)
- Environment (3)
- Fossil Energy (1)
- Fusion (1)
- High-Performance Computing (2)
- Machine Learning (2)
- Materials (10)
- Materials Science (17)
- Mathematics (1)
- National Security (1)
- Nuclear Energy (2)
- Physics (4)
- Quantum Computing (1)
- Quantum Science (5)
- Security (1)
- Summit (5)
- Sustainable Energy (2)
- Transportation (3)
Media Contacts
![Artist’s conceptual drawing illustrates the novel energy filtering technique using neutrons that enabled researchers at ORNL to freeze moving germanium telluride atoms in an unblurred image. The images offered key insights into how the material produces its outstanding thermoelectric performance. Credit: Jill Hemman/ORNL, U.S. Dept. of Energy](/sites/default/files/styles/list_page_thumbnail/public/2023-03/23-G02345_VariableShutter_0.png?h=68c90eda&itok=LLAHAeOZ)
Scientists have long sought to better understand the “local structure” of materials, meaning the arrangement and activities of the neighboring particles around each atom. In crystals, which are used in electronics and many other applications, most of the atoms form highly ordered lattice patterns that repeat. But not all atoms conform to the pattern.
![From left are UWindsor students Isabelle Dib, Dominik Dziura, Stuart Castillo and Maksymilian Dziura at ORNL’s Neutron Spin Echo spectrometer. Their work advances studies on a natural cancer treatment. Credit: Genevieve Martin/ORNL, U.S. Dept. of Energy](/sites/default/files/styles/list_page_thumbnail/public/2023-03/2022-P14758_0.jpg?h=c6980913&itok=YJLFDsPp)
A scientific instrument at ORNL could help create a noninvasive cancer treatment derived from a common tropical plant.
![Heat is typically carried through a material by vibrations known as phonons. In some crystals, however, different atomic motions — known as phasons — carry heat three times faster and farther. This illustration shows phasons made by rearranging atoms, shown by arrows. Credit: Jill Hemman/ORNL, U.S. Dept. of Energy](/sites/default/files/styles/list_page_thumbnail/public/2023-02/23-G01840_Phason_Manly_proof3_0.png?h=10d202d3&itok=3NpjriWi)
Warming a crystal of the mineral fresnoite, ORNL scientists discovered that excitations called phasons carried heat three times farther and faster than phonons, the excitations that usually carry heat through a material.
![ORNL’s award-winning ultraclean condensing high-efficiency natural gas furnace features an affordable add-on technology that can remove more than 99.9% of acidic gases and other emissions. The technology can also be added to other natural gas-driven equipment. Credit: Jill Hemman/ORNL](/sites/default/files/styles/list_page_thumbnail/public/2023-02/furnace_thumb.png?h=4de03b89&itok=reXZ-C6r)
Natural gas furnaces not only heat your home, they also produce a lot of pollution. Even modern high-efficiency condensing furnaces produce significant amounts of corrosive acidic condensation and unhealthy levels of nitrogen oxides
![Even small movements of hydrogen, shown in yellow, were found to cause large energy shifts in the attached iron atoms, shown in silver, which could be of interest in creating novel chemical reactions. Credit: Jill Hemman/ORNL, U.S. Dept. of Energy](/sites/default/files/styles/list_page_thumbnail/public/2023-02/Feb_nscd_storytip_1.png?h=b69e0e0e&itok=kwLq6_Wl)
Researchers from Yale University and ORNL collaborated on neutron scattering experiments to study hydrogen atom locations and their effects on iron in a compound similar to those commonly used in industrial catalysts.
![Steve Nagler](/sites/default/files/styles/list_page_thumbnail/public/2023-03/2022-P14651_0_0.jpg?h=ae1281eb&itok=gtC0e7y3)
The truth is neutron scattering is not important, according to Steve Nagler. The knowledge gained from using it is what’s important
![A material’s spins, depicted as red spheres, are probed by scattered neutrons. Applying an entanglement witness, such as the QFI calculation pictured, causes the neutrons to form a kind of quantum gauge. This gauge allows the researchers to distinguish between classical and quantum spin fluctuations. Credit: Nathan Armistead/ORNL, U.S. Dept. of Energy](/sites/default/files/styles/list_page_thumbnail/public/2021-11/Quantum%20Illustration%20V3_0.png?h=2e111cc1&itok=Bth5wkD4)
A team led by the U.S. Department of Energy’s Oak Ridge National Laboratory demonstrated the viability of a “quantum entanglement witness” capable of proving the presence of entanglement between magnetic particles, or spins, in a quantum material.
![ORNL researchers used neutrons at the lab’s Spallation Neutron Source to analyze modified high-entropy metal alloys with enhanced strength and ductility, or the ability to stretch, under high-stress without failing. Credit: Rui Feng/ORNL, U.S. Dept. of Energy](/sites/default/files/styles/list_page_thumbnail/public/2021-10/HEA%20alloy%20story%20tipe%20image%20PNG%20File_0.png?h=1356c768&itok=3en3kAQ0)
![From left to right are Beth Armstrong, Govindarajan Muralidharan and Andrew Payzant.](/sites/default/files/styles/list_page_thumbnail/public/2021-07/ASMfellows21.jpg?h=6fa44599&itok=B-QDenKS)
ASM International recently elected three researchers from ORNL as 2021 fellows. Selected were Beth Armstrong and Govindarajan Muralidharan, both from ORNL’s Material Sciences and Technology Division, and Andrew Payzant from the Neutron Scattering Division.
![From top to bottom respectively, alloys were made without nanoprecipitates or with coarse or fine nanoprecipitates to assess effects of their sizes and spacings on mechanical behavior. Credit: Michelle Lehman/ORNL, U.S. Dept. of Energy](/sites/default/files/styles/list_page_thumbnail/public/2021-07/beat1.jpg?h=97c79c76&itok=_hh-NOFW)
Scientists at ORNL and the University of Tennessee, Knoxville, have found a way to simultaneously increase the strength and ductility of an alloy by introducing tiny precipitates into its matrix and tuning their size and spacing.