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487 Current news about the topic metals

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A topography of extremes

On the track of unconventional superconductivity, researchers are charting unknown territory

31-Aug-2020

An international team of scientists from the Helmholtz-Zentrum Dresden-Rossendorf (HZDR), the Max Planck Institute for Chemical Physics of Solids, and colleagues from the USA and Switzerland have successfully combined various extreme experimental conditions in a completely unique way, revealing ...

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Scientists use fruit peel to turn old batteries into new

Using orange peel to efficiently recover precious metals from battery waste

28-Aug-2020

Scientists led by Nanyang Technological University, Singapore (NTU Singapore) have developed a novel method of using fruit peel waste to extract and reuse precious metals from spent lithium-ion batteries in order to create new batteries. The team demonstrated their concept using orange peel, ...

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Microplastics transport metallic pollutants

Pursuing the Trojan horse: Scientists are developing methods for measuring metal in microplastics

27-Jul-2020

There are a relatively large number of studies on the accumulation and transport of persistent organic pollutants by microplastics, which has resulted in good data in this regard. Data, however, on the accumulation of metals that are toxic to the environment are very rare and sometimes ...

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A touch of gold and silver

For the first time, it is possible to produce crystalline layers of precious metals that consist of a single atomic layer and which are semiconducting

05-Jun-2020

Metals are usually characterized by good electrical conductivity. This applies in particular to gold and silver. However, researchers from the Max Planck Institute for Solid State Research in Stuttgart, together with partners in Pisa and Lund, have now discovered that some precious metals lose ...

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Electric pulses precisely shape 3D-printed metal parts

Metal 3D printing with electrochemical machining combined

02-Jun-2020

Professor Dirk Bähre and his research team at Saarland University have developed a non-contact method of transforming metal parts fabricated by a 3D printer into high-precision technical components for specialist applications. The novel method enables them to process parts made from strong, ...

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New quantum switch turns metals into insulators

05-Feb-2020

Most modern electronic devices rely on tiny, finely-tuned electrical currents to process and store information. These currents dictate how fast our computers run, how regularly our pacemakers tick and how securely our money is stored in the bank. In a study published in Nature Physics, ...

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A new look at 'strange metals'

20-Jan-2020

For years, a new synthesis method has been developed at TU Wien (Vienna) to unlock the secrets of "strange metals". Now a breakthrough has been achieved. Superconductors allow electrical current to flow without any resistance - but only below a certain critical temperature. Many materials have to ...

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Engineers develop 'chameleon metals' that change surfaces in response to heat

15-Jan-2020

Just like a chameleon changes its skin color in response to its environment, engineers have found a way for liquid metal - and potentially solid metal - to change its surface structure in response to heat. Treating particles of liquid metal alloys with heat causes them to roughen their surfaces ...

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Metal with unusual properties

18-Dec-2019

A Chinese-German research cooperation involving the University of Augsburg has demonstrated properties in a metal that cannot be explained by the standard theory. The results were obtained on a special metallic compound with unusual magnetic characteristics – scientists call it mag-netic ...

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Speeding up the hydrogen production by the magic topological surface states

29-Aug-2019

Water electrolysis could provide high-quality hydrogen gas that can be used in fuel cells directly. However, since noble metals, such as platinum and iridium, are currently needed to initiate such a reaction, the cost is very high. "Obviously, catalysts that are low-cost with high-activity are ...

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