Complex oxides have long tantalized the materials science community for their promise in next-generation energy and information technologies. Complex oxide crystals combine oxygen atoms with assorted metals to produce unusual and very desirable properties.
When Orlando Rios first started analyzing samples of carbon fibers made from a woody plant polymer known as lignin, he noticed something unusual. The material’s microstructure -- a mixture of perfectly spherical nanoscale crystallites distributed within a fibrous matrix -- looked almost too good to be true.
Blowing bubbles may be fun for kids, but for engineers, bubbles can disrupt fluid flow and damage metal.
The High Flux Isotope Reactor, or HFIR, now in its 48th year of providing neutrons for research and isotope production at the Department of Energy’s Oak Ridge National Laboratory, has been designated a Nuclear Historic Landmark by the American Nuclear Society (ANS).
Researchers at the Department of Energy’s Oak Ridge National Laboratory got a surprise when they built a highly ordered lattice by layering thin films containing lanthanum, strontium, oxygen and iron. Although each layer had an intrinsically nonpolar (symmetric) distribution of electrical charges, the lattice had an asymmetric distribution of charges. The charge asymmetry creates an extra “switch” that brings new functionalities to materials when “flipped” by external stimuli such as electric fields or mechanical strain. This makes polar materials useful for devices such as sensors and actuators.
The Department of Energy’s Oak Ridge National Laboratory concluded a series of workshops this month that engaged scientists from around the country to identify grand scientific challenges and how they might be addressed through application of neutron science.
Neutron scattering research at the Department of Energy’s Oak Ridge National Laboratory has revealed clear structural differences in the normal and pathological forms of a protein involved in Huntington’s disease.
The Spallation Neutron Source at the Department of Energy’s Oak Ridge National Laboratory broke records for sustained beam power level as well as for integrated energy and target lifetime in the month of June.
A team representing Westinghouse Electric Company and the Consortium for Advanced Simulation of Light Water Reactors (CASL), a Department of Energy (DOE) Innovation Hub led by Oak Ridge National Laboratory (ORNL), has received an International Data Corporation HPC Innovation Excellence Award for applied simulation on Titan, the nation’s most powerful supercomputer, which is managed by the Oak Ridge Leadership Computing Facility at ORNL. s
The American Conference on Neutron Scattering returned to Knoxville this week, 12 years after its inaugural meeting there in 2002.