Oak Ridge National Laboratory

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Oak Ridge National Laboratory articles

Displaying 1 - 11 of 11

Two-dimensional MXene materials get their close-up

Two-dimensional MXene materials get their close-up
  Researchers have long sought electrically conductive materials for economical energy-storage devices. Two-dimensional (2D) ceramics called MXenes are contenders. Unlike most 2D ceramics, MXenes have inherently good conductivity because they are molecular sheets made from the carbides and nitrides of transition metals like titanium.
14th March 2017

Accidental result could improve materials synthesis

Accidental result could improve materials synthesis
  Unexpected results from a neutron scattering experiment at the Department of Energy's Oak Ridge National Laboratory could open a new pathway for the synthesis of novel materials and also help explain the formation of complex organic structures observed in interstellar space.
16th November 2016

3D-printed magnets outperform conventional versions

3D-printed magnets outperform conventional versions
Researchers at the Department of Energy's Oak Ridge National Laboratory have demonstrated that permanent magnets produced by additive manufacturing can outperform bonded magnets made using traditional techniques while conserving critical materials. Scientists fabricated isotropic, near-net-shape, neodymium-iron-boron (NdFeB) bonded magnets at DOE's Manufacturing Demonstration Facility at ORNL using the Big Area Additive Manufacturing (BAAM) machine.
2nd November 2016


STEM writes tiny patterns in metallic "ink"

STEM writes tiny patterns in metallic "ink"
Scientists at the Department of Energy's Oak Ridge National Laboratory are the first to harness a STEM to directly write tiny patterns in metallic "ink," forming features in liquid that are finer than half the width of a human hair. The automated process is controlled by weaving a STEM instrument's electron beam through a liquid-filled cell to spur deposition of metal onto a silicon microchip. The patterns created are "nanoscale," or on the size scale of atoms or molecules.
5th October 2016

Complex materials may form basis for multifunction chips

Researchers studying the behaviour of nanoscale materials at the Department of Energy's Oak Ridge National Laboratory have uncovered remarkable behaviour that could advance microprocessors beyond today's silicon-based chips. The study, featured on the cover of Advanced Electronic Materials, shows that a single crystal complex oxide material, when confined to micro- and nanoscales, can act like a multi-component electrical circuit.
15th September 2016

Drafting process aids nanoscale 3D printing

Drafting process aids nanoscale 3D printing
Designing a 3D printed structure is hard enough when the product is inches or feet in size. Imagine shrinking it smaller than a drop of water, smaller even than a human hair, until it is dwarfed by a common bacterium. This impossibly small structure can be made a reality with focused electron beam induced deposition, or FEBID, to essentially 3D print at the nanoscale. FEBID uses an electron beam from a scanning electron microscope to condense gaseous precursor molecules into a solid deposit on a surface.
8th August 2016

Nontoxic process makes larger sheets of 2D nanomaterials

Nontoxic process makes larger sheets of 2D nanomaterials
A team of scientists led by the Department of Energy's Oak Ridge National Laboratory has developed a novel way to produce 2D nanosheets by separating bulk materials with nontoxic liquid nitrogen. The environmentally friendly process generates a 20-fold increase in surface area per sheet, which could expand the nanomaterials' commercial applications. "It's actually a very simple procedure," said ORNL chemist Huiyuan Zhu, who co-authored a study published in Angewandte Chemie International.
26th July 2016

Alloy promises to improve energy efficiency of engines

Alloy promises to improve energy efficiency of engines
Researchers at the Department of Energy's Oak Ridge National Laboratory and partners Lawrence Livermore National Laboratory and Wisconsin-based Eck Industries have developed aluminum alloys that are both easier to work with and more heat tolerant than existing products. What may be more important, however, is that the alloys - which contain cerium - have the potential to jump-start the United States' production of rare earth elements.
6th June 2016

Tougher plastic has 50% renewable content

Tougher plastic has 50% renewable content
Researchers at the Department of Energy's Oak Ridge National Laboratory have made a better thermoplastic by replacing styrene with lignin, a brittle, rigid polymer that, with cellulose, forms the woody cell walls of plants. In doing so, they have invented a solvent-free production process that interconnects equal parts of nanoscale lignin dispersed in a synthetic rubber matrix to produce a meltable, moldable, ductile material that's at least ten times tougher than ABS.
23rd March 2016

Replacement for silicon devices looms big with latest discovery

Replacement for silicon devices looms big with latest discovery
Two-dimensional electronic devices could inch closer to their ultimate promise of low power, high efficiency and mechanical flexibility with a processing technique developed at the Department of Energy's Oak Ridge National Laboratory. A team led by Olga Ovchinnikova of ORNL's Center for Nanophase Materials Sciences Division used a helium ion microscope, an atomic-scale "sandblaster," on a layered ferroelectric surface of a bulk copper indium thiophosphate.
18th March 2016

'Keiser rigs' stress materials to improve products

'Keiser rigs' stress materials to improve products
Understanding and predicting the performance of cutting-edge materials in extreme environments have long been signature strengths at the Department of Energy's Oak Ridge National Laboratory. For decades, environmental exposure chambers at ORNL, including some called Keiser rigs, have subjected materials to corrosive gases, crushing pressures and calamitous heat.
9th March 2016


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