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Story tips: Powered by nature, get on the bus, accelerating methane and more

Story tips: Powered by nature, get on the bus, accelerating methane and more
eurekalert.org - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from eurekalert.org Daily Mail and Mail on Sunday newspapers.

United States , United Kingdom , Oak Ridge , Lynne Degitz , Chris Schadt , Steven Campbell , Madhu Chinthavali , Kristen Coyne , Seth Schofill , Jennifer Burke , Johnny Scotello , Ted Biewer , Halil Tekinalp , Stephanie Seay , Helia Zandi , Kim Askey , Fei Xie , Matt Lakin , Scott Jones , Researchers At Oak Ridge National Laboratory , Oak Ridge National Laboratory , Oak Ridge National , Big Area Additive Manufacturing , Ridge National Laboratory , Local Motor , Local Motors Olli ,

Story tips: Mighty Mo material, fueling retooling, goods on the move, doubling concrete and more

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IMAGE: ORNL researchers used electron beam powder bed fusion to produce refractory metal molybdenum, which remained crack free and dense, proving its viability for additive manufacturing applications.
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Credit: ORNL/U.S. Dept. of Energy
Manufacturing - Mighty Mo
Oak Ridge National Laboratory scientists proved molybdenum titanium carbide, a refractory metal alloy that can withstand extreme temperature environments, can also be crack free and dense when produced with electron beam powder bed fusion. Their finding indicates the material s viability in additive manufacturing.
Molybdenum, or Mo, as well as associated alloys, are difficult to process through traditional manufacturing because of their high melting temperature, reactivity with oxygen and brittleness. ....

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Story tips: Urban climate impacts, materials' dual approach and healing power

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IMAGE: The built environment, from roads to sidewalks to parking lots, affects the water cycle and climate. Scientists at ORNL have explored the use of statistical relationships for evaluating representations of.
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Credit: Andy Sproles/ORNL, U.S. Dept. of Energy
Modeling - Urban climate impacts
Researchers at Oak Ridge National Laboratory have identified a statistical relationship between the growth of cities and the spread of paved surfaces like roads and sidewalks. These impervious surfaces impede the flow of water into the ground, affecting the water cycle and, by extension, the climate.
We ve shown that there is a specific mathematical shape to the relationship between a city s population and the total paved area, ORNL s Christa Brelsford said. Using that, we examined climate model predictions and determined they correctly represent some important attributes we know about cities. ....

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Story tips: Quantum building blocks, high-pressure diamonds, wildfire ecology and more

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IMAGE: Transition metals stitched into graphene with an electron beam form promising quantum building blocks.
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Credit: Ondrej Dyck, Andrew Lupini and Jacob Swett/ORNL, U.S. Dept. of Energy
Materials - Quantum building blocks
Oak Ridge National Laboratory scientists demonstrated that an electron microscope can be used to selectively remove carbon atoms from graphene s atomically thin lattice and stitch transition-metal dopant atoms in their place.
This method could open the door to making quantum building blocks that can interact to produce exotic electronic, magnetic and topological properties.
This is the first precision positioning of transition-metal dopants in graphene. The produced graphene-dopant complexes can exhibit atomic-like behavior, inducing desired properties in the graphene. ....

Chris Schadt , Ondrej Dyck , Andrzej Nycz , Stephen Jesse , Jennifer Burke , Tim Mcintyre , Bianca Haberl , Stephanie Seay , Reinhard Boehler , Kim Askey , Jeremy Rumsey , Nanophase Materials Sciences , Lincoln Electric , Oak Ridge National Laboratory , Ridge National Laboratory , Nanophase Materials , Andrew Lupini , Spallation Neutron Source , Plant Sciences , Ecology Environment , Chemistry Physics Materials Sciences , Atomic Molecular Particle Physics , Geology Soil , Electrical Engineering Electronics , Industrial Engineering Chemistry , Climate Change ,