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Scientists discover new class of semiconducting entropy-stabilized materials
The design of novel materials with superior characteristics by entropy stabilization is a very dynamic emerging research area in materials science. However, despite recent advances in entropy-stabilized metals and insulating ceramics targeted for structural applications, there is still a dearth of high-entropy semiconductors, which poses a major obstacle for the adoption of high-entropy materials in semiconducting functional applications. Our study aims to realize a novel class of the semiconducting entropy-stabilized chalcogenide alloys. (2020-07-31)

Nanoreactor strategy generates superior supported bimetallic catalysts
Prof. WANG Guanghui and Prof. JIANG Heqing from the Qingdao Institute of Bioenergy and Bioprocess Technology (QIBEBT) of the Chinese Academy of Sciences (CAS), in collaboration with Prof. LIU Jian from the Dalian Institute of Chemical Physics (DICP) of CAS, recently proposed a nanoreactor strategy for scalable synthesis of the supported ultrafine bimetallic nanoparticles (BNPs). (2020-07-30)

How to stack graphene up to four layers
IBS research team reports a novel method to grow multi-layered, single-crystalline graphene with a selected stacking order in a wafer scale. They obtained four-layered graphene using chemical vapor deposition (CVD) via Cu-Si alloy formation. (2020-07-27)

Discovery of disordered nanolayers in intermetallic alloys
A research team led by scientists of City University of Hong Kong (CityU) has recently discovered the disordered nanoscale layers at grain boundaries in the ordered intermetallic alloys. The nanolayers can not only resolve the irreconcilable conflict between strength and ductility effectively, but also maintain the alloy's strength with an excellent thermal stability at high temperatures. Designing similar nanolayers may open a pathway for the design of new structural materials with optimal alloy properties. (2020-07-24)

Robust high-performance data storage through magnetic anisotropy
A technologically relevant material for HAMR data memories are thin films of iron-platinum nanograins. An international team led by the joint research group of Prof. Dr. Matias Bargheer at HZB and the University of Potsdam has now observed experimentally for the first time how a special spin-lattice interaction in these iron-platinum thin films cancels out the thermal expansion of the crystal lattice. (2020-07-10)

When metal flows like liquid glass: a technology for producing superplastic wire is proposed
Currently, low-alloy aluminium is widely used in electrical engineering and machine building. At the same time, it should be noted that modern electrical engineering places very high and in some cases mutually exclusive requirements to aluminium alloys. (2020-07-06)

New room-temperature liquid-metal battery could be the path to powering the future
Researchers at The University of Texas have created a new liquid battery with components that can remain molten at room temperature. Other liquid batteries must be kept at 240 degrees Celsius for their components to stay molten. (2020-07-06)

Tomography studies of coins shed light on the history of Volga Bulgaria
Kazan Federal University, Joint Institute for Nuclear Research (Dubna, Russia), and Khalikov Institute of Archeology (Tatarstan Academy of Sciences, Kazan, Russia) are working together to study the physical properties of the coins found on the territory of former Volga Bulgaria. (2020-06-16)

Freshly printed magnets
During metal processing in the 3D laser printer, temperatures of more than 2,500 degrees Celsius are reached within milliseconds, causing some components of the alloys to evaporate. While widely considered a problem inherent to the process, Empa researchers spotted an opportunity - and are now using the effect to create new alloys with novel properties and embed them in 3D-printed metallic work pieces with micrometer precision. (2020-06-11)

Switching from aluminum to zinc alloys could improve sustainability of automotive parts
A new study reveals that switching from aluminum to zinc alloys in the production of automotive parts could greatly enhance their longevity and sustainability. The study, conducted by Cranfield University's Sustainable Manufacturing Systems Centre, compared three different alloys (Aluminium-A380, Magnesium-AZ91D and Zinc-ZA8). Over recent years aluminum alloys have been favoured by the automotive manufacturing industry for their lightweight properties and lower cost. (2020-06-08)

Spontaneous formation of nanoscale hollow structures could boost battery storage
An unexpected property of nanometer-scale antimony crystals -- the spontaneous formation of hollow structures -- could help give the next generation of lithium ion batteries higher energy density without reducing battery lifetime. The reversibly hollowing structures could allow lithium ion batteries to hold more energy and therefore provide more power between charges. (2020-06-08)

Counterintuitive phase behavior observed in isotopic hydrogen (H2-HD-D2) alloy
A joint team from the Institute of Solid State Physics of the Hefei Institutes of Physical Science, collaborating with researchers from the Center for High Pressure Science & Technology Advanced Research and University of Edinburgh, has reported a new discovery in which they found counterintuitive effects of isotopic doping on the phase diagram of H2-HD-D2 molecular alloy. (2020-06-03)

Avalanche photodiode from UVA and UT-Austin breaks performance record for LiDAR receivers
Electrical and computer engineers at the University of Virginia and University of Texas-Austin have developed an avalanche photodiode that achieved record performance and has the potential to transform next generation night-vision imaging and Light Detection and Ranging (LiDAR) receivers. For LiDAR, the team's low-noise, two-micrometer avalanche photodiode enables higher-power operation that is eye-safe. The peer reviewed paper was published May 18, 2020, in Nature Photonics. (2020-05-27)

Nanoneedles to increase the capacity and robustness of digital memories
Researchers have developed a new technique to locally modify the properties of a metamagnetic material. The method consists in applying local pressure to the surface of the material using nanometric needles and allows a much more easy and local modification than current methods. The research opens the door to a more accurate and precise control of magnetic materials and allows to improve the architecture and capacity of magnetic digital memories. (2020-05-26)

What's Mars made of?
Earth-based experiments on iron-sulfur alloys thought to comprise the core of Mars reveal details about the planet's seismic properties for the first time. This information will be compared to observations made by Martian space probes in the near future. Whether the results between experiment and observation coincide or not will either confirm existing theories about Mars' composition or call into question the story of its origin. (2020-05-13)

Experimental study of how 'metallic glass' forms challenges paradigm in glass research
Unlike in a crystal, the atoms in a metallic glass are not ordered when the liquid solidifies. The properties of these materials are therefore quite different to those of an ordered crystalline material that forms when the same constituents are cooled more slowly. Exactly what is happening at the atomic level during the glass transition process, known as vitrification, is still not completely understood. An team has now gained some crucial insight into this process. (2020-05-06)

Liquid metal research invokes 'Terminator' film -- but much friendlier
Researchers at Binghamton University, State University of New York have developed 'the first liquid metal lattice in the world.' The team has created a series of prototypes that return to their shapes when crushed. (2020-05-05)

Sustainable structural material for plastic substitute
A team lead by Prof. Shu-Hong Yu from the University of Science and Technology of China (USTC) report a high-performance sustainable structural material called cellulose nanofiber plate (CNFP) which is constructed from bio-based CNF and ready to replace the plastic in many fields. (2020-05-01)

X-ray analysis sheds light on construction and conservation of artefacts from Henry VIII's warship
21st century X-ray technology has allowed University of Warwick scientists to peer back through time at the production of the armour worn by the crew of Henry VIII's favoured warship, the Mary Rose. (2020-04-28)

High-performance electrolyte solves battery puzzle
Lithium ion batteries have already become an integral part of our everyday life. However, our energy-hungry society demands longer life, faster charging, and lighter batteries for a variety of applications from electric vehicles to portable electronics, including lightening the load a soldier carries as numerous electronics become adopted by the Army. (2020-04-21)

KIST develops low-price, high-efficiency catalyst that converts CO2 into chemicals
The Korea Institute of Science and Technology(KIST) announced that a research team, led by Dr. Oh Hyung-Suk and Dr. Lee Woong-hee, at the Clean Energy Research Center at KIST, developed a technology to reduce the use of precious metal catalysts at electrodes where oxygen is produced. The use of precious metal catalysts is one of the problems hindering the practical application of artificial photosynthesis technology. (2020-04-20)

Study shows European coins have antimicrobial activity in contrast to banknotes
Research due to be presented at this year's European Congress on Clinical Microbiology and Infectious Diseases (ECCMID) shows that European banknotes are more easily contaminated by microbes than coins. However, coins being made from antimicrobial metals such as copper does not completely stop them from being sources of contamination. (2020-04-16)

Tracking the atomic pathways by in-situ liquid cell TEM
Using the in-situ liquid cell transmission electron microscopy, the three-stage growth of Pt3Ni-Ni(OH)2 core-shell structures at the gas-liquid interfaces was clearly observed. Researchers also further observed the nucleation and growth of the Ni(OH)2 flakes on an existing layer either at the middle part or at the step edge. More interestingly, the dynamic transformation among a Pt3Ni alloy, Ni clusters and Ni(OH)2 flakes was also imaged even at a high electron dose rate. (2020-04-08)

Scientists reveal hidden catalytic surface of Ni-Au core-shell in CO2 hydrogenation
Dr. LIU Wei and his colleagues from the Dalian Institute of Chemical Physics (DICP) of the Chinese Academy of Sciences have found that the core-shell configuration of a Ni-Au catalyst was lost during the actual reaction and recovered afterwards. (2020-03-23)

'Vacancies' crystal defects key to improved design of lightweight aluminium alloys
Monash University researchers in Australia have used a combination of atomic-scale imaging and simulations to improve the understanding of the theta-prime strengthening phase in the aluminium copper alloy system. (2020-03-11)

Small precipitates make big difference in mitigating strength-ductility tradeoff
Researchers from the Institute of Mechanics of the Chinese Academy of Sciences, teaming up with scientists from Singapore and the US, have found that nanoscale precipitates provide a unique sustainable dislocation source at sufficiently high stress. (2020-02-26)

Light moves spins around
Combining experiment and theory, researchers from the Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy (MBI) and the Max Planck Institute of Microstructure Physics have disentangled how laser pulses can manipulate magnetization via ultrafast transfer of electrons between different atoms. (2020-02-17)

Fast screening for potential new catalysts
The success of the energy transition depends significantly on efficient electrocatalysts, for instance for fuel cells or the reduction of CO2. Special alloys made from five or more elements are promising candidates. A team of researchers from Ruhr-Universit├Ąt Bochum (RUB) has developed a concept in order to quickly screen an abundance of possible element combinations to identify which are worth optimizing. (2020-02-04)

Instant hydrogen production for powering fuel cells
Researchers from the Chinese Academy of Sciences, Beijing and Tsinghua University, Beijing investigate real-time, on-demand hydrogen generation for use in fuel cells, which are a quiet and clean form of energy. (2020-01-28)

Well-designed substrates make large single crystal bi-/tri-layer graphene possible
IBS CMCM scientists have reported the fabrication and use of single crystal copper-nickel alloy foil substrates for the growth of large-area, single crystal bilayer and trilayer graphene films. (2020-01-20)

Engineers develop 'chameleon metals' that change surfaces in response to heat
Martin Thuo and his research group have found a way to use heat to predictably and precisely change the surface structure of a particle of liquid metal. It's like a chameleon changing skin color in response to its environment. And so Thuo and his team are calling the technology 'chameleon metals.' (2020-01-13)

An 18-carat gold nugget made of plastic
ETH researchers have created an incredibly lightweight 18-carat gold, using a matrix of plastic in place of metallic alloy elements. (2020-01-10)

Ultrasound can make stronger 3D-printed alloys
A study just published in Nature Communications shows high frequency sound waves can have a significant impact on the inner micro-structure of 3D printed alloys, making them more consistent and stronger than those printed conventionally. (2020-01-09)

Archaeologists found the burial of Scythian Amazon with a head dress on Don
The burial of the Amazon with a head dress made of precious metal dated back to the second half of the 4th c BC was found by the staff of the Don expedition of IA RAS during the examination of the cemetery Devitsa V of Voronezh Oblast. This is the first found in Middle Don river and well preserved ceremonial headdress of a rich Scythian women, earlier archaeologists found only fragments of such head dresses. (2019-12-25)

Why are alloy metal nanoparticles better than monometallic ones for CNT growth?
Revealing a long-term mystery of why certain nanoparticles are more efficient in incorporating carbon atoms and achieving a faster carbon nanotube growth. (2019-12-19)

Speedy and precise multicolor imaging of biomolecules now possible
For the first time, researchers can track biological molecules with unprecedented speed and precision thanks to the use of multi-metallic nanoparticles. The researchers published their results on October 17 in ACS Photonics, a journal of the American Chemical Society. (2019-12-09)

Adding copper strengthens 3D-printed titanium
Successful trials of titanium-copper alloys for 3D printing could kickstart a new range of high-performance alloys for medical device, defence and aerospace applications. (2019-12-04)

An alloy that retains its memory at high temperatures
Even after the hundredth time the material returns to its original shape when heated. (2019-12-03)

Fatigue-resistant, high-performance cooling materials enabled by 3D printing
High-performance solid-state elastocaloric cooling materials with exceptional fatigue resistance are made possible by 3D printing a nickel-titanium based alloy, researchers report. (2019-11-28)

Storing energy in hydrogen 20 times more effective using platinum-nickel catalyst
Catalysts accelerate chemical reactions, but the widely used metal platinum is scarce and expensive. Researchers at Eindhoven University of Technology (TU/e), together with Chinese, Singaporean and Japanese researchers, have now developed an alternative with a 20x higher activity: a catalyst with hollow nanocages of an alloy of nickel and platinum. TU/e researcher Emiel Hensen wants to use this new catalyst to develop a refrigerator-size electrolyzer of about 10 megawatts in the future. (2019-11-14)

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