Throw a rock through a window made of silica glass, and the brittle, insulating oxide pane shatters. But whack a golf ball with a club made of metallic glass—a resilient conductor that looks like metal—and the glass not only stays intact but also may drive the ball farther than conventional clubs. In light of this contrast, the nature of glass seems anything but clear.
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.
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 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.
Oak Ridge National Laboratory researcher John Wagner has been named a 2013 recipient of the Department of Energy’s Ernest Orlando Lawrence Award for his work in advancing computer, information and knowledge sciences.
Photovoltaic spray paint could coat the windows and walls of the future if scientists are successful in developing low-cost, flexible solar cells based on organic polymers. Scientists at the Department of Energy’s Oak Ridge National Laboratory recently discovered an unanticipated factor in the performance of polymer-based solar devices that gives new insight on how these materials form and function.