Current Metallic Glasses News and Events

Current Metallic Glasses News and Events, Metallic Glasses News Articles.
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Researchers grow artificial hairs with clever physics trick
Things just got hairy at Princeton. Researchers found they could coat a liquid elastic on the outside of a disc and spin it to form useful, complex patterns. When spun just right, tiny spindles rise from the material as it cures. The spindles grow as the disc accelerates, forming a soft solid that resembles hairs. Published in PNAS Feb. 22 (2021-02-22)

A speed limit also applies in the quantum world
Even in the world of the smallest particles with their own special rules, things cannot proceed infinitely fast. Physicists at the University of Bonn have now shown what the speed limit is for complex quantum operations. The study also involved scientists from MIT, the universities of Hamburg, Cologne and Padua, and the Jülich Research Center. The results are important for the realization of quantum computers, among other things. (2021-02-19)

Object transparency reduces human perception of three-dimensional shapes
Toyohashi University of Technology discovered that when people judge the thickness of an object, objects with glass-like transparent optical properties are perceived to be flatter than they actually are. This discover may be useful for everyday applications, such as devices to assist with walking in people with low-vision or autonomous driving. (2021-02-10)

'Magnetic graphene' forms a new kind of magnetism
Researchers have identified a new form of magnetism in so-called magnetic graphene, which could point the way toward understanding superconductivity in this unusual type of material. (2021-02-08)

Quasicrystal-clear: Material reveals unique shifting surface structure under microscope
Ever since their discovery, quasicrystals have garnered much attention due to their strange structure. Today, they remain far from being well-understood. In a new study, scientists reveal, for the first time, a unique shifting surface atomic structure in a material emulating quasicrystals, opening doors to the better understanding of magnetic and superconducting properties of quasicrystals, and potential applications in semiconductor film growth. (2021-02-04)

Non-metallic electronic regulation in CuCo oxy-/thio-spinel as OER electrocatalysts
Researchers successfully prepared oxy-spinel of Cu1-xCo2+xO4 nanaoflakes and thio-spinel of Cu1-xCo2+xS4 nanospheres by a facile hydrothermal method. The resulting Cu1-xCo2+xO4 exhibits higher catalytic performances toward OER in alkaline media than Cu1-xCo2+xS4 for water oxidation. Experimentally and theoretically, the superior OER catalytic activity of Cu1-xCo2+xO4 nanoflakes mainly depends on the strongly-electronegativity of oxygen element in spinel structure, which determines the higher valence state of Co active sites in CuCo oxyspinel. (2021-02-01)

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)

Titanium oxide nanotubes facilitate low-cost laser-assisted photoporation
Toyohashi University of Technology developed a nanosecond pulse laser-assisted photoporation method using titanium-oxide nanotubes (TNTs) for highly efficient and low-cost intracellular delivery. HeLa - human cervical cancer cells were cultured in the nanotubes and submerged in a solution of biomolecules. After cells were exposed to nanosecond pulse laser, we successfully delivered propidium iodide (PI) and fluorescent dextran into cells with high efficiency and cell viability. (2021-01-25)

New advances in the detection of bias in face recognition algorithms
A team from the Computer Vision Center (CVC) and the University of Barcelona has published the results of a study that evaluates the accuracy and bias in gender and skin colour of automatic face recognition algorithms tested with real world data. Although the top solutions exceed the 99.9% of accuracy, researchers have detected some groups that show higher false positive or false negative rates. (2021-01-25)

Photocatalytic reaction in the shadow
Photoelectrochemical water splitting is a promising technology to convert solar energy into value-added fuels. Theoretically, silicon-based metal-insulator-semiconductor (MIS) photocathode can achieve high efficiency. However, the parasitic light absorption caused by catalysts and metals, as well as the lack of metals to form a large band-offset with p-Si, severely limit their performances. Scientists based in China have demonstrated an illumination-reaction decoupled MIS photocathode using n-Si to prevent the parasitic light absorption while establishing a large band-offset. (2021-01-25)

New technique builds super-hard metals from nanoparticles
Brown University researchers have shown a way to make bulk metals by smashing tiny metal nanoparticles together, which allows for customized grain structures and improved mechanical and other properties. (2021-01-22)

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)

Broadening horizons for people with quadriplegia
An assistive technology uses magnetic skin to support freedom of movement for people with quadriplegia. (2021-01-17)

What stops flows in glassy materials?
Researchers from the Institute of Mechanics of the Chinese Academy of Sciences and Hong Kong University of Science and Technology recently conducted experimental studies for the first time on glassy systems composed of nonspherical particles. (2021-01-17)

Conductive nature in crystal structures revealed at magnification of 10 million times
In groundbreaking materials research, a team led by University of Minnesota Professor K. Andre Mkhoyan has made a discovery that blends the best of two sought-after qualities for touchscreens and smart windows--transparency and conductivity. (2021-01-15)

Dual-shot dynamics and ultimate frequency of all-optical magnetic recording on GdFeCo
Achieving ultrafast and energy-efficient optical control of magnetism beyond light's 'diffraction limit' could revolutionize information-processing technology. Towards this goal, researchers led by Xiangping Li at Jinan University and Alexey V. Kimel at Radboud University have determined the fastest possible rate of the optical reversal of magnetization of up to 3?GHz, and proposed a method to achieve data recording at scales below light's 'diffraction limit', which is generally believed to restrict the attainable resolution. (2021-01-14)

Evolution in a test tube: these bacteria survive on deadly copper surfaces
The descendants of regular wild-type bacteria can evolve to survive for a long time on metallic copper surfaces that would usually kill them within a few minutes. An international research team led by Martin Luther University Halle-Wittenberg (MLU) and the Bundeswehr Institute of Microbiology was able to produce these tiny survivalists in the lab and has been able to study them more closely. The team reports on its findings in Applied and Environmental Microbiology. (2021-01-13)

Fossils' soft tissues helping to solve puzzle that vexed Darwin
Remarkably well-preserved fossils are helping scientists unravel a mystery about the origins of early animals that puzzled Charles Darwin. (2021-01-12)

Scientists have synthesized an unusual superconducting barium superhydride
A new exotic compound, BaH12, has been discovered by experiment and theory. Unusually, it is a molecular metal and demonstrates the superconducting transition around 20?K at 140?GPa (2021-01-12)

USTC develops ultrahigh-performance plasmonic metal-oxide materials
In a study published in Advanced Materials, the researchers from Hefei National Laboratory for Physical Sciences at the Microscale, the University of Science and Technology of China of the Chinese Academy of Sciences, using an electron-proton co-doping strategy, invented a new metal-like semiconductor material with excellent plasmonic resonance performance. (2021-01-08)

2D CaCl crystals with +1 calcium ions displaying unexpected metallicity and ferromagnetism
Counter to conventional wisdom that the only valence state of Ca ions under ambient conditions is +2 and corresponding crystals are insulating and nonferromagnetic, scientists in China made exciting discoveries of two-dimensional CaCl crystals with +1 calcium ions, which have unexpected metallicity, room-temperature ferromagnetism, heterojunction, piezoelectricity-like property, and distinct hydrogen storage and release capability, showing great potential applications of such abnormal material in designing novel electric and magnetic devices with a size down to atomic scale. (2021-01-05)

Scientists suggested a method to improve performance of methanol fuel cells
Fuel cells based on methanol oxidation have a huge potential in the motor and technical industries. To increase their energy performance, scientists suggest using electrodes made of thin palladium-based metallic glass films. A group of researchers from Far Eastern Federal University (FEFU), Austria, Turkey, Switzerland, and the UK has developed a new metallic glass for this application. The results were reported in the Nanoscale journal. (2020-12-22)

Simple and cost-effective extraction of rare metals from industrial waste
Researchers from Kanazawa University developed a protocol to efficiently purify palladium and silver ions from industrial waste, and convert the ions into pure metallic elements. This will help increase global stock of valuable elements that are widely needed yet in scarce supply. (2020-12-18)

Cataract surgery in infancy increases glaucoma risk
Children who undergo cataract surgery as infants have a 22% risk of glaucoma 10 years later, whether or not they receive an intraocular lens implant. The findings come from the National Eye Institute (NEI)-funded Infant Aphakic Treatment Study, which today published 10-year follow-up results in JAMA Ophthalmology. NEI is part of the National Institutes of Health. (2020-12-17)

Physicists solve geometrical puzzle in electromagnetism
A team of scientists have solved the longstanding problem of how electrons move together as a group inside cylindrical nanoparticles. (2020-12-16)

Turning sweat against itself with a metal-free antiperspirant
Body odor is an unpleasant smell, produced when bacteria living on the skin break down the proteins in sweat. To avoid stinking, some people apply antiperspirants that clog sweat ducts with foreign materials, such as metals, to slow perspiration. As a step toward a more natural solution, researchers reporting in ACS Applied Materials & Interfaces have turned sweat against itself using an evaporation-based approach in which the salts in sweat create a gel-like plug. (2020-12-16)

Quantum mysteries: Probing an unusual state in the superconductor-insulator transition
Scientists at Tokyo Institute of Technology approach the two decade-old mystery of why an anomalous metallic state appears in the superconductor-insulator transition in 2D superconductors. Through experimental measurements of a thermoelectric effect, they found that the ''quantum liquid state'' of quantum vortices causes the anomalous metallic state. The results clarify the nature of the transition and could help in the design of superconducting devices for quantum computers. (2020-12-14)

A theory as clear as glass
Scientists at The University of Tokyo ran molecular dynamics simulations to compose a more complete theory of the factors that drive crystallization instead of glass formation. They found that tiny changes in material composition can frustrate crystal growth, leading to vitrification. This work may lead to advances in the field of industrial glassmaking. (2020-12-11)

In your face: a compact RGB scanning projector for wearable displays and smart glasses
Scientists at the University of Fukui, Japan, have achieved remarkable progress in the development of an extremely compact RGB laser projector that can create a high definition (HD) projection image. Their device uses a waveguide-type coupler to produce perfectly aligned RGB output beams from three independent lasers and a microelectromechanical mirror to create high-resolution scanning images. With further refinements, this technology could become a mainstay in wearable displays such as smart glasses. (2020-12-10)

Within a hair's breadth--forensic identification of single dyed hair strand now possible
A single strand of hair in a crime scene contains many clues that can help identify a perpetrator. In a recent study, scientists at Tokyo University of Science, Japan, have combined two modern techniques, called surface-enhanced Raman spectroscopy and X-ray fluorescence, to distinguish between different colors in individual hair strands. Both these techniques are almost non-destructive and can be conducted with portable devices, making this a promising way to get supportive evidence in forensic investigations. (2020-12-09)

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)

Researchers say we're watching the world go blind
Three University of Michigan researchers say eye care accessibility around the globe isn't keeping up with an aging population, posing challenges for eye care professionals over the next 30 years. (2020-12-07)

Titanium atom that exists in two places at once in crystal to blame for unusual phenomenon
Bombarding a crystal with neutrons reveals a quantum quirk that frustrates heat transfer. (2020-12-03)

Tunable rainbow light trapping in ultrathin resonator arrays
Light squeezed into nanoscale metallic gaps has a myriad of applications in sensing, energy, and nonlinear optics. Recently, scientists at the University of Toronto have developed a new paradigm for the design of ultrathin metallic nanostructures which allows for precision tailoring to fit any desired application. This design strategy, coupled with a novel fabrication technique, provides a promising platform for the advancement of nanoscale optics. (2020-12-01)

Researchers discovered solid phosphorus from a comet
An international study led from the University of Turku, Finland, discovered phosphorus and fluorine in solid dust particles collected from a comet. The finding indicates that all the most important elements necessary for life may have been delivered to the Earth by comets. (2020-11-26)

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)

Researchers develop more efficient method to recover heavy oil
The current global supply of crude oil is expected to meet demand through 2050, but there may be a few more drops to squeeze out. By making use of a previously undesired side effect in oil recovery, researchers have developed a method that yields up to 20% more heavy oil than traditional methods. Tokyo University of Agriculture and Technology (TUAT) team published their results on August 24 in Energy & Fuels, a journal of the American Chemical Society. (2020-11-21)

Surprises in 'active' aging
Aging is a process that affects not only living beings. Many materials, like plastics and glasses, also age -- ie they change slowly as their particles try to pack better. Biological materials, such as living tissue, show similar behaviour to glasses except that the particles are actual cells with their own propulsion. Researchers at Göttingen University used computer simulations to explore the aging behaviour of these ''living'' glassy systems. Research was published in Physical Review Letters. (2020-11-18)

Virginia Tech lab proves the concept of a natural approach to antiperspirants
The Virginia Tech Nature-Inspired Fluids and Interfaces Lab, led by Associate Profesor Jonathan Boreyko, has just made a major breakthrough in the study of natural antiperspirants. (2020-11-16)

Looking inside the glass
Scientists at The University of Tokyo used electron spectroscopy to probe the coordination structures formed by the silicon atoms in aluminosilicate glass. This work may lead to innovations in the touchscreen and solar panel sectors. (2020-11-16)

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