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11 Current news about the topic alloys

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Noble metal-free catalyst system as active as platinum

Affordable high-performance catalysts have come within reach

25-Oct-2018

The industry has been traditionally deploying platinum alloys as catalysts for oxygen reduction, which is for example essential in fuel cells or metal-air batteries. Expensive and rare, that metal imposes strict restrictions on manufacture. Researchers at Ruhr-Universität Bochum (RUB) and ...

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Unmasking corrosion to design better protective thin films for metals

Analyzing oxide films at atomic level

08-Oct-2018

Corrosion is an age-old problem that is estimated to cost about $1 trillion a year, or about 5 percent of the U.S. gross domestic product. Corrosion of metals can be particularly bad, but fortunately they are normally protected from catastrophic damage by naturally forming, super-thin oxide ...

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Materials Testing: Detecting damages in non-magnetic steel through magnetism

24-Jul-2018

Wear, corrosion, material fatigue - these signs of degradation are common to most materials. This makes it all the more important to detect damage early, preferably on the micro scale. Magnetic test methods are often used for this purpose, which was previously impossible with non-magnetic steel. ...

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An unlikely marriage among oxides

21-Jun-2018

Sebastian Siol is looking for new materials with unusual properties that were so far not accessible in experiments. To do this, he connects partners who don't really fit together: One partner forces the other into a state that would not be possible without the unlikely pairing. Siol also makes ...

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Oxygen: A blessing and a curse for nanostructured alloying

02-May-2018

Severe plastic deformation and powder processing techniques are used to produce nanostructured materials with tailor-made compositions and without the effort of precasting. They allow the production of novel metallic nanocrystalline materials by mechanically alloying immiscible elements. Oxide ...

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2-D tin (stanene) without buckling

A possible topological insulator

23-Jan-2018

Nagoya University-led researchers produce 2D sheets of tin atoms predicted to have exotic uses in electronics. Nagoya, Japan - Sometimes it pays to be two-dimensional. The merits of graphene, a 2D sheet of carbon atoms, are well established. In its wake have followed a host of "post-graphene ...

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The repulsion trick

A self-solving puzzle for organic molecules

20-Mar-2017

Jülich researchers have succeeded in controlling the growth of organic molecules using a special trick. Molecules that repel each other play a key role in this process: due to their opposing forces, they always keep a certain distance from their neighbours. Therefore, they mix easily with a ...

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Gum metals pave the way for new applications

Scientists discover peculiarities in crystal structure of titanium alloy

02-Feb-2017

Metals which can be bent as gum pave the way for new industrial applications for example in the aerospace industry. These so-called gum metals exist but the mechanism behind this behaviour was still unsettled and thus difficult to be used for applications. Scientists from the Max-Planck-Institut ...

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Nanomagnets: Creating order out of chaos

Physicists engrave nanoscale magnets directly into layer of material

25-Nov-2015

Miniaturization is the magic word when it comes to nanomagnetic devices intended for use in new types of electronic components. Scientists from the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) have proposed the use of ion beams for their fabrication. An ultra-fine beam consisting of around 10 neon ...

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Long-sought chiral anomaly detected in crystalline material

07-Sep-2015

A study by Princeton researchers presents evidence for a long-sought phenomenon called the "chiral anomaly" in a metallic compound of sodium and bismuth. The additional finding of an increase in conductivity in the material may suggest ways to improve electrical conductance and minimize energy ...

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