Current Alloy News and Events

Current Alloy News and Events, Alloy News Articles.
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Quickly identify high-performance multi-element catalysts
Catalysts consisting of at least five chemical elements could be the key to overcoming previous limitations in the production of green hydrogen, fuel cells, batteries or CO2 reduction. However, finding the optimal composition of these multi-element catalysts is like looking for a needle in a haystack: testing thousands to millions of possible combinations cannot be realized. (2021-02-17)

Hydrogen peroxide, universal oxidizing agent, high-efficiency production by simple process
The Korea Institute of Science and Technology(KIST) announced that a joint research team developed a platinum-gold alloy catalyst for hydrogen peroxide production based on a computer simulation. Hydrogen peroxide selectivity can be increased to 95% by using this catalyst, compared with only 30-40% for a palladium catalyst, which indicates that mostly hydrogen peroxide on the developed Pt-Au catalyst can be produced with a small amount of water. (2021-02-16)

From waste heat to electrical power: A new generation of thermomagnetic generators
Use of waste heat contributes largely to sustainable energy supply. Scientists of Karlsruhe Institute of Technology (KIT) and T?hoku University in Japan have now come much closer to their goal of converting waste heat into electrical power at small temperature differences. As reported in Joule, electrical power per footprint of thermomagnetic generators based on Heusler alloy films has been increased by a factor of 3.4. (DOI: 10.1016/j.joule.2020.10.019) (2021-02-03)

Fine tuned: adjusting the composition and properties of semiconducting 2D alloys
Semiconducting 2D alloys could be key to overcoming the technical limitations of modern electronics. Although 2D Si-Ge alloys would have interesting properties for this purpose, they were only predicted theoretically. Now, scientists from Japan Advanced Institute of Science and Technology have realized the first experimental demonstration. They have also shown that the Si to Ge ratio can be adjusted to fine tune the electronic properties of the alloys, paving the way for novel applications. (2021-02-02)

Islands without structure inside metal alloys could lead to tougher materials
An international team of researchers produced islands of amorphous, non-crystalline material inside a class of new metal alloys known as high-entropy alloys. This discovery opens the door to applications in everything from landing gears, to pipelines, to automobiles. The new materials could make these lighter, safer, and more energy efficient. (2021-01-29)

National laboratories' look to the future of light sources with new magnet prototype
After more than 15 years of work, scientists at three DOE national laboratories have succeeded in creating and testing an advanced, more powerful superconducting magnet made of niobium and tin for use in the next generation of light sources. (2021-01-28)

Zebra stripes, leopard spots: frozen metal patterns defy conventional metallurgy
''Stripy zebra, spotty leopard...'' Pattern formation and pattern recognition entertains children and scientists alike. Alan Turing's 1950s model explaining patterns in two-substance systems is used by metallurgists to explain microscopic internal stripes and spots. A study out today explains exotic patterns, counter to Turing's theory, forming on the liquid metal gallium, which melts in the hand. The previously ignored surface-solidification phenomenon improves fundamental understanding of liquid-metal alloys, with a potential patterning tool, and advanced applications in future electronics and optics. (2021-01-18)

Breathing easier with a better tracheal stent
New research led by the University of Pittsburgh is poised to drastically improve the use of tracheal stents for children with airway obstruction. Researchers demonstrate for the first time the successful use of a completely biodegradable magnesium-alloy tracheal stent that safely degrades and does not require removal. (2021-01-15)

Giving the hydrogen economy an acid test
Tsukuba University scientists show that the effectiveness of hydrogen-producing metal catalysts protected by graphene depends on the ability of protons to penetrate into the inner metallic surface. This work may lead to widely available hydrogen-powered cars. (2021-01-14)

Copper-indium oxide: A faster and cooler way to reduce our carbon footprint
Emergent e-fuel technologies often employ the reverse water-gas shift (RWGS) reaction to convert atmospheric CO2 to CO. While efficient, this reaction requires high temperatures and complex gas separation for high performance. However, for the first time in the world, scientists from Japan have now demonstrated record-high CO2 conversion rates at relatively low temperatures in a modified chemical-looping version of RWGS using a novel copper-indium oxide. (2021-01-13)

USTC obtains Pd-Pt tesseracts for oxygen reduction reaction
A team led by Prof. ZENG Jie from Hefei National Laboratory for Physical Sciences at the Microscale and Prof. BAO Jun from National Synchrotron Radiation Laboratory of University of Science and Technology of China of the Chinese Academy of Sciences made breakthrough in the controlled synthesis of Pd-Pt tesseracts for ORR and the mechanism investigation of their etching process. (2021-01-12)

New nanostructured alloy for anode is a big step toward revolutionizing energy storage
Researchers have developed a battery anode based on a new nanostructured alloy that could revolutionize the way energy storage devices are designed and manufactured. (2021-01-11)

A safer, less expensive and fast charging aqueous battery
Researchers have developed a new battery anode that overcomes the limitations of lithium-ion batteries and offers a stable, high-performance battery using seawater as the electrolyte. (2021-01-11)

Transition metal 'cocktail' helps make brand new superconductors
Researchers from Tokyo Metropolitan University mixed and designed a new, high entropy alloy (HEA) superconductor, using extensive data on simple superconducting substances with a specific crystal structure. HEAs are known to preserve superconducting characteristics up to extremely high pressures. The new superconductor, Co0.2Ni0.1Cu0.1Rh0.3Ir0.3Zr2, has a superconducting transition at 8K, a relatively high temperature for an HEA. (2021-01-09)

Better together: Scientists discover applications of nanoparticles with multiple elements
As catalysts for fuel cells, batteries and processes for carbon dioxide reduction, alloy nanoparticles that are made up of five or more elements are shown to be more stable and durable than single-element nanoparticles. (2021-01-04)

Imaging of ballistic wounds, bullet composition and implications for MRI safety
According to an article in ARRS' American Journal of Roentgenology (AJR), because patients with ballistic embedded fragments are frequently denied MRI (due to indeterminate bullet composition sans shell casings), radiography and CT can be used to identify nonferromagnetic projectiles that are safe for MRI. (2020-12-29)

Researchers find a better way to design metal alloys
A system developed by MIT researchers uses machine learning to analyze boundaries between crystal grains, allowing for the selection of desired properties in a new metal alloy. (2020-12-11)

A standout superalloy
In recent years, it has become possible to use laser beams and electron beams to ''print'' engineering objects with complex shapes that could not be achieved by conventional manufacturing. The additive manufacturing (AM) process, or 3D printing, for metallic materials involves melting and fusing fine-scale powder particles -- each about 10 times finer than a grain of beach sand -- in sub-millimeter-scale ''pools'' created by focusing a laser or electron beam on the material. (2020-12-08)

Aluminium alloy research could benefit manned space missions
Manned space missions in spacecraft made of aluminium that is light yet resistant to radiation could be a step nearer following research involving a world-leading facility at the University of Huddersfield. (2020-12-07)

Common pipe alloy can form cancer-causing chemical in drinking water
Rusted iron pipes can react with residual disinfectants in drinking water distribution systems to produce carcinogenic hexavalent chromium in drinking water, reports a study by engineers at UC Riverside. (2020-12-03)

How to cool more efficiently
In the journal Applied Physics Reviews (DOI: 10.1063/5.0020755), an international research team from the University of Barcelona, the Helmholtz-Zentrum Dresden-Rossendorf (HZDR), and TU Darmstadt report on possibilities for implementing more efficient and environmentally friendly refrigeration processes. For this purpose, they investigated the effects of simultaneously exposing certain alloys to magnetic fields and mechanical stress. (2020-12-03)

UCF researcher zeroes in on critical point for improving superconductors
Developing a practical ''room temperature'' superconductor is a feat science has yet to achieve. However a UCF researcher and his colleagues are working to move this goal closer to realization by taking a closer look at what is happening in ''strange'' metals. The research was published recently in the journal Communications Physics - Nature. (2020-11-23)

Highly efficient, long-lasting electrocatalyst to boost hydrogen fuel production
The IBS research team developed a highly efficient and long-lasting electrocatalyst for water oxidation using cobalt, iron, and a minimal amount of ruthenium. (2020-11-20)

Palladium, meet copper: Skoltech researchers use machine learning to improve catalysts
Researchers from Skoltech and their colleagues from Germany and the US have studied the properties and behavior of a palladium-copper alloy under changing temperatures and hydrogen concentrations, with highly relevant implications of this research for catalyst design. The authors hope that their findings can open the door for designing metal alloys with better catalytic properties by taking into account dynamic changes in the composition and structure of materials at realistic operational conditions. (2020-11-17)

AI speeds up development of new high-entropy alloys
POSTECH's joint research team identifies a deep learning method for phase prediction of high-entropy alloys. (2020-11-11)

Researchers 3D print biomedical parts with supersonic speed
Forget glue, screws, heat or other traditional bonding methods. A Cornell University-led collaboration has developed a 3D printing technique that creates cellular metallic materials by smashing together powder particles at supersonic speed. (2020-11-10)

Ultra-small hollow alloy nanoparticles for synergistic hydrogen evolution catalysis
The ultra-small hollow ternary alloy PtNiCu, PtCoCu and CuNiCo nanoparticles were prepared via an effective and simple one-pot strategy. Due to moderately synergistic interactions between the three metals of Pt, Ni, Cu and H*, the hollow PtNiCu nanoparticles showed the excellent hydrogen evolution reaction (HER) performance. In alkaline electrolyte, the overpotential at 10 mA cm-2 is 28 mV versus RHE. Its mass activity is 5.62-fold higher than that of commercial Pt/C system. (2020-10-28)

Single-atom alloy: Superb cocatalyst for photocatalysis
The surface charge state of co-catalyst plays an important role in photocatalysis. However, the regulation on surface charge state of co-catalysts especially by changing their microstructures and coordination environment almost remains unexplored. Recently, Hai-Long Jiang's research group from the University of Science and Technology of China made very interesting progress in this aspect by fabricating single-atom alloy cocatalyst. (2020-10-28)

UCF researcher is working to extend battery life in smartphones, electric cars
A University of Central Florida researcher is working to make portable devices and electric vehicles stay charged longer by extending the life of the rechargeable lithium-ion batteries powering them. He is doing this by making the batteries more efficient, with some of his latest work focusing on keeping the anode from falling apart over time. The new technique is detailed in the journal Advanced Materials. (2020-10-26)

Scientists from NUST MISIS manage to improve metallic glasses
Researchers at National University of Science and Technology MISIS (NUST MISIS) have managed to develop a unique method to process bulk metallic glasses. According to the authors of the study, they have managed to find processing conditions that significantly improve the quality of this promising material. The research results were published in Journal of Alloys and Compounds. (2020-10-23)

Monash engineers improve fatigue life of high strength aluminium alloys by 25 times
A world-first study by Monash University engineers has demonstrated improvements in the fatigue life of high strength aluminium alloys by 25 times -- a significant outcome for the transport manufacturing industry. (2020-10-15)

High-speed photos shine a light on how metals fail
How things deform and break is important for engineers, as it helps them choose and design what materials they're going to use for building things. Researchers at Aalto University and Tampere University have stretched metal alloy samples to their breaking point and filmed it using ultra-fast cameras to study what happens. Their discoveries have the potential to open up a whole new line of research in the study of materials deformation. (2020-10-07)

Advancing multiprincipal alloys
The most significant advances in human civilization are marked by the progression of the materials that humans use. The Stone Age gave way to the Bronze Age, which in turn gave way to the Iron Age. New materials disrupt the technologies of the time, improving life and the human condition. (2020-10-05)

How a toxic chromium species could form in drinking water
The water crisis in Flint, Michigan, brought much-needed attention to the problem of potentially toxic metals being released from drinking water distribution pipes when water chemistry changes. Now, researchers reporting in ACS' Environmental Science & Technology have investigated how hexavalent chromium, known as Cr(VI), can form in drinking water when corroded cast iron pipes interact with residual disinfectant. Their findings could suggest new strategies to control Cr(VI) formation in the water supply. (2020-09-30)

Machine learning homes in on catalyst interactions to accelerate materials development
A machine learning technique rapidly rediscovered rules governing catalysts that took humans years of difficult calculations to reveal--and even explained a deviation. The University of Michigan team that developed the technique believes other researchers will be able to use it to make faster progress in designing materials for a variety of purposes. (2020-09-29)

Study shows heating in vaping device as cause for lung injury
Early results of an experimental vaping study have shown significant lung injury from E-cigarette (eC) devices with nickel-chromium alloy heating elements. The findings were consistent, with or without the use of nicotine, vitamin E oil or tetrahydrocannabinol (THC), which have previously been thought to contribute to the life-threatening respiratory problem. (2020-09-28)

Hydrogen vehicles might soon become the global norm
Roughly one billion cars and trucks zoom about the world's roadways. Only a few run on hydrogen. This could change after a breakthrough achieved by researchers at the University of Copenhagen. The breakthrough? A new catalyst that can be used to produce cheaper and far more sustainable hydrogen powered vehicles. (2020-08-24)

A new iron based superelastic alloy capable of withstanding extreme temperatures
Researchers from Tohoku University's Graduate School of Engineering have discovered a novel iron-based superelastic alloy (SEA) capable of withstanding extreme temperatures--both high and low. (2020-08-20)

Magnesium alloy with eddy-thermal effect for novel tumor magnetic hyperthermia therapy
Magnetic hyperthermia therapy (MHT) as a noninvasive local treatment strategy is able to ablate tumors. There is still a demand to find new magnetocaloric agents with strong AMF-induced heating performance and excellent biocompatibility. The eddy thermal effect of magnesium alloy (MgA) could be employed for MHT to effectively ablate tumors was reported by scientists based in China. Considering the wide clinical use of implantable MgA devices, such a strategy holds great promise in clinical translation. (2020-08-10)

Materials science researchers develop first electrically injected laser
Materials science researchers have demonstrated the first electrically injected laser made with germanium tin. Used as a semiconducting material for circuits on electronic devices, the diode laser could improve micro-processing speed and efficiency at much lower costs. (2020-08-07)

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