Mikhail Sokolov
Mikhail Sokolov of Oak Ridge National Laboratory has received the Award of Merit from the American Society for Testing and Materials International. The award includes the honorary title of fellow and is ASTM’s highest organizational recognition for individual offerings to standards activities.
Sokolov was honored for his contributions to successful symposia on nuclear technology and applications and for his work on transition range fracture toughness standards. [Read more…]
Stephen Croft
Stephen Croft of the U.S. Department of Energy’s Oak Ridge National Laboratory has been elected fellow of the Institute of Physics.
He was selected for his achievements in physics and outstanding contributions to the physics profession.
Croft works in ORNL’s Nuclear Security and Isotope Technology Division. [Read more…]
The Titan supercomputer at Oak Ridge National Laboratory was ranked as the world’s fastest supercomputer in November 2012. (Photo courtesy of ORNL)
By Leo Williams
Oak Ridge National Laboratory’s Titan supercomputer has completed rigorous acceptance testing to ensure the functionality, performance, and stability of the machine, one of the world’s most powerful supercomputing systems for open science.
The U.S. Department of Energy machine, the first to combine different types of processing units to maximize performance at such a large scale, ranked as the fastest supercomputer in the world in the November 2012 list published at http://www.top500.org/. Titan, a Cray XK7 supercomputer, is capable of more than 27,000 trillion calculations each second—or 27 petaflops. [Read more…]
A new all-solid lithium-sulfur battery developed by an Oak Ridge National Laboratory team led by Chengdu Liang has the potential to reduce cost, increase performance, and improve safety compared with existing designs. (Submitted photo)
Scientists at Oak Ridge National Laboratory have designed and tested an all-solid lithium-sulfur battery with approximately four times the energy density of conventional lithium-ion technologies that power today’s electronics.
The ORNL battery design, which uses abundant low-cost elemental sulfur, also addresses flammability concerns experienced by other chemistries.
“Our approach is a complete change from the current battery concept of two electrodes joined by a liquid electrolyte, which has been used over the last 150 to 200 years,” said Chengdu Liang, lead author on the ORNL study published this week in Angewandte Chemie International Edition. [Read more…]
Pictured from top left, clockwise, are Valentino Cooper, Gaute Hagen, Matthias Schindler, and Jason Hayward. They are 2013 awardees in the U.S. Department of Energy’s Early Career Research Program. (Submitted photo)
Materials science and physics research led by early career Oak Ridge National Laboratory scientists received a boost this week from the U.S. Department of Energy’s Office of Science Early Career Research Program.
The program, now in its fourth year, is designed to bolster the nation’s scientific workforce by providing support to exceptional researchers during crucial early career years when many scientists do their most formative work. This year’s 61 awardees were selected from a pool of 770 university- and national laboratory-based applicants.
“This highly competitive program is a well-deserved recognition for early-career scientists who are launching their own research programs,†ORNL Director Thom Mason said. “We are delighted that four of this year’s awards are going to researchers associated with ORNL.†[Read more…]
The Oak Ridge National Laboratory—home of one of only two reactor facilities in the world capable of producing californium-252 (Cf-252)—has begun implementing a new six-year contract between the U.S. Department of Energy Isotope Program and industry to make this unique and versatile radioisotope.
The new contract follows the successful completion of a four-year Cf-252 program under an agreement with a consortium of industries that use the neutron-emitting radioisotope for a number of applications that focus mostly on analysis, detection, and nuclear energy.
Y-12 National Security Complex (Submitted photo)
A report released Wednesday said the automatic federal spending cuts set for March 1 would require furloughs at the Y-12 National Security Complex and a shutdown of the High Flux Isotope Reactor at Oak Ridge National Laboratory.
The report was issued by Democrats on the House Appropriations Committee.
It said Y-12 would have to furlough 700-1,000 of its 4,500 employees for up to six months, and there would be hundreds of layoffs at national laboratories, universities, research facilities, and private sector companies that rely on grant funding from the U.S. Department of Energy’s Office of Science for energy research, the report said.
By identifying two genes required for transforming inorganic into organic mercury, which is far more toxic, scientists today have taken a significant step toward protecting human health.
The question of how methylmercury, an organic form of mercury, is produced by natural processes in the environment has stumped scientists for decades, but a team led by researchers at Oak Ridge National Laboratory has solved the puzzle. Results of the study, published in the journal Science, provide the genetic basis for this process, known as microbial mercury methylation, and have far-reaching implications.
Oak Ridge National Laboratory researchers developed a nanoporous solid electrolyte (bottom left and in detail on right) from a solvated precursor (top left). The material conducts ions 1,000 times faster than its natural bulk form and enables more energy-dense lithium ion batteries. (Submitted photo)
Looking toward improved batteries for charging electric cars and storing energy from renewable but intermittent solar and wind, scientists at Oak Ridge National Laboratory have developed the first high-performance, nanostructured solid electrolyte for more energy-dense lithium ion batteries.
Today’s lithium-ion batteries rely on a liquid electrolyte, the material that conducts ions between the negatively charged anode and positive cathode. But liquid electrolytes often entail safety issues because of their flammability, especially as researchers try to pack more energy in a smaller battery volume. Building batteries with a solid electrolyte, as ORNL researchers have demonstrated, could overcome these safety concerns and size constraints.
ORNL’s newest supercomputer, Titan, seen here with associate lab director for computing and computational sciences Jeff Nichols, took the top spot in November’s Top500 rankings. (Photos courtesy of ORNL)
Oak Ridge National Laboratory regained the lead in high-performance computing, enjoyed record-setting recognition for its research, and became a showpiece for renewable energy technology during 2012.
The U.S. Department of Energy’s Office of Science reciprocated with favorable marks in its annual appraisal of managing contractor UT-Battelle. DOE cited the laboratory’s operation of its scientific user facilities, its “delivery of impactful science,” and a successful workforce restructuring to reduce operating costs.
“The dedicated efforts of our laboratory staff in all phases of science and technology and operational support have resulted in an excellent record of delivering science to the nation in 2012,” said ORNL Director Thom Mason. “ORNL will continue to set the pace in research toward a clean and secure energy future.”
ORNL’s 2012 included achievements in both research and support.
A federal science website that offers access to millions of web pages and is hosted by an organization with offices in Oak Ridge celebrates its 10th anniversary this month.
Science.gov was launched in December 2002. It has broken new ground in interagency collaboration, a press release said, and offers access to more than 200 million pages of scientific information, a “one-stop†shop for real-time science data.
It’s hosted by the U.S. Department of Energy Office of Scientific and Technical Information, located in Washington, D.C., and Oak Ridge. Science.gov has more than 34 million page views per year, a 45-fold increase from the earliest days, the press release said. It can help users answer a range of scientific questions.
Turning lignin, a plant’s structural “glue” and a byproduct of the paper and pulp industry, into something considerably more valuable is driving a research effort headed by Amit Naskar of Oak Ridge National Laboratory.
In a cover article published in Green Chemistry, the research team describes a process that ultimately transforms the lignin byproduct into a thermoplastic—a polymer that becomes pliable above a specific temperature. Researchers accomplished this by reconstructing larger lignin molecules either through a chemical reaction with formaldehyde or by washing with methanol. Through these simple chemical processes, they created a crosslinked rubber-like material that can also be processed like plastics.
