Articles tagged with Metallic Glasses
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A research team developed an AI-guided framework to discover new metallic glasses by combining element embeddings learned from Wikipedia with graph neural networks. This approach overcomes challenges in predicting glass-forming systems, enabling the discovery of promising compositions with high glass-forming ability.
A research group has constructed a 'material network' for metallic glasses, revealing that fully connected groups of elements are excellent predictors for new alloys. The study also found that many recent discoveries were already encoded in the network structure from earlier data.
Researchers discovered that ultrasonic vibration treatment can reverse aging-induced property deterioration in metallic glasses, significantly improving their capacity to deform without breaking. This innovative technique offers a low-cost alternative to traditional rejuvenation methods, enabling fast and damage-free recovery of aged MGs.
A team of researchers used rapid calorimetry to study the dynamics of metallic liquids, revealing a composition-dependent trend in fragility. They found that an increase in aluminum content led to a sudden decrease in fragility, attributed to covalent-like electronic interactions between Al-Al bonds.
A research team led by Professor Yang Yong found that severely oxidized metallic glass nanotubes can attain an ultrahigh recoverable elastic strain of up to 14% at room temperature. The discovery implies that oxidation in low-dimension metallic glass can result in unique properties for applications in sensors, medical devices, and othe...
Researchers have discovered that smaller metal droplets resist freezing into glass for longer, even at lower temperatures. This finding has significant implications for understanding material properties and durability.
A new method has revealed an unexpected acceleration of relaxation dynamics in compressed cerium-based metallic glass under high pressure. The study shows a non-monotonic crossover at ~3 GPa, indicating that structural details play a crucial role in glass relaxation dynamics.
A team of researchers led by Prof. Shinya Hosokawa analyzed the atomic configurations of Pd42.5Ni7.5Cu30P20, a champion bulk metallic glass, and found its characteristic configurations that lead to its excellent glass-forming ability.
Researchers have discovered that metallic glasses contain liquid-like atoms with dynamics similar to high-temperature liquids. These findings reveal a 'part-solid and part-liquid' nature of metallic glasses, which can affect their elasticity, strength, and ductility.
Research from Tohoku University and Johns Hopkins University sheds new light on the glass transition in metallic glasses, influenced by high configuration entropy. The study introduces a novel glass-forming system with unprecedented thermodynamic and dynamic characteristics.
Researchers co-led by Professor Wang Xunli discovered a structure link between a glass solid and its crystalline counterpart, finding that both forms share the same building block. The team also concluded that connectivity between clusters distinguishes the crystalline and amorphous states.
Researchers observed cavitation governing fracture in glasses, revealing self-organized nucleation and growth of nanocavities. Cavitation-induced nanopatterns are common in various glass types, including polymers and silicates.
Researchers used atomic electron tomography to map the structure of metallic glass, a class of matter that has long posed a challenge to scientists. The study revealed pockets where atoms coalesced into ordered superclusters, showing that even within an amorphous solid, the arrangement of atoms is not completely random.
Researchers at Brown University have developed a method to create solid metal structures by smashing individual metal nanoclusters together. The technique, which involves chemical treatment and pressure, produces metals with uniform grain sizes that can be precisely tuned for enhanced properties.
Scientists have developed a new metallic glass electrode made of thin palladium-based metallic glass films, which are 85% more efficient in oxidizing methanol than platinum-based analogs. The film is also resistant to corrosion and could replace existing materials in the energy sector.
Researchers at NUST MISIS have developed a unique method to process bulk metallic glasses, improving their quality and properties. The new method increases tensile plasticity up to 1.5% and hardness by 25%, expanding the scope of application for these materials.
A team of scientists from Far Eastern Federal University and their colleagues developed a way to hydrogenate thin metallic glass layers at room temperature, which can expand the range of cheap, energy-efficient materials for hydrogen energy. Metallic glass has potential to replace expensive palladium in hydrogen systems.
Scientists at Tohoku University have developed a novel heat treatment technique that induces a 2D gradient rejuvenation state in bulk metallic glasses, resulting in improved ductility and tailored hardening. The technique enables the formation of a complete shear plane, blocking shear band propagation and increasing critical shear stress.
Scientists at Saarland University study atomic rearrangements in a gold alloy as it cools, revealing a fundamental new finding that challenges conventional wisdom. The researchers found that the freezing process is decoupled from the alpha-relaxation rate, leading to improved understanding of amorphous metals and glass-forming materials.
Researchers at Penn State used modeling methods to predict properties of ZIF glasses, combining transparency and metallic glass nonbrittle quality, with potential applications in gas storage and energy, promising breakthroughs in transparent and bendable glass
Researchers found that flow units, similar to structural defects like dislocations, play a crucial role in metallic glass's mechanical and thermal properties. This discovery paves the way for designing optimized materials through tailoring of these units.
Researchers have developed a new approach to 3D printing metals, using metallic glasses, which can produce solid, high-strength metal components with minimal processing. The technique eliminates the need for expensive and complicated support structures, making it more practical and commercially viable than current methods.
Researchers developed a new modeling technique to simulate metallic glass behavior under stress, predicting the amount of energy released when fractured. This breakthrough improves computer-aided materials design, helping researchers determine the properties of metallic glasses.
A team of scientists has developed a method to discover new metallic glass alternatives using machine learning and accelerated experiments, reducing the discovery time from decades to hours. The approach enables researchers to quickly narrow down potential materials and get immediate feedback from AI models.
A team of scientists has developed a machine learning algorithm that can quickly identify new blends of ingredients for metallic glass, accelerating the discovery process by 200 times. The method uses data from thousands of experiments to pinpoint potential materials and has significant implications for the future of materials science.
Researchers have successfully created amorphous metal alloys using additive manufacturing, overcoming the critical casting thickness limitation. The technique enables production of metallic glasses on larger scales, with potential applications in high-performance materials for electric motors, wear resistance, and structural integrity.
Researchers have made significant strides in understanding how atoms rearrange at different temperatures during the glass transition process. The team found that the time it takes for atoms to lock into place varies widely, with some regions 'sticking' first and holding on to their neighbors for a long time.
Researchers have solved a decades-long puzzle about metallic glasses' atomic structure using a new method combining various techniques. The study revealed a hidden amorphous phase within a certain temperature range, linked to metals' ability to form glass and potentially enabling the development of stronger novel materials.
Researchers at Rice University have developed a new theory and computational methods to understand how metallic glasses behave under stress, revealing the formation of shear bands that can lead to breaking. The study provides valuable insights into improving the strength and durability of glass materials.
Metallic glasses have the potential to revolutionize many commercial applications due to their toughness and hardness. The researchers uncovered the mechanism by which fivefold symmetry inhibits crystallisation, making it an important step in developing metallic glasses for various applications.
Scientists have developed a method to predict which alloys can form bulk metallic glasses, overcoming the complex process of synthesizing these alloys. The new approach identifies hundreds of new candidates for metallic glass made from simple two-element alloys, opening up possibilities for novel strong and conductive materials.
A new study from Duke University predicts which binary alloys will form metallic glasses, paving the way for strong and conductive materials. The technique involves analyzing structures and energies within solidified alloys to identify potential metallic glasses.
Researchers have created a new metallic glass with an unusual chemical structure that makes it incredibly hard and yet elastic. The material can withstand heavy impacts without deforming and retains most of its original strength.
Researchers at Carnegie Institution explore the rules behind metallic glasses, materials that are stronger and more resistant than traditional metals. By studying alloys under extreme pressures, they found a consistent numeric relationship between structure and properties, which could aid further discovery and synthesis.
Scientists have discovered a fractal pattern at the atomic level in metallic glasses, contradicting previous assumptions about empty space. This finding enables the study of material properties and has implications for fields like mathematics, physics, and computer science.
New study predicts metal combinations for glass-forming ability, enabling mass production of strong and flexible alloys. The development paves the way for applications in electronics, space exploration, and energy storage.
Researchers demonstrate that β relaxations are intrinsic to supercooled liquids and glasses, connecting them to outstanding issues in glassy physics and material sciences. The study suggests that metallic glasses could be used to design glassy materials with specific properties, such as ductility.
Materials scientist Scott X. Mao successfully creates metallic glasses from pure metals by applying ultrafast cooling rates, solving a long-standing issue in the field. The process involves a novel technique that enables transformation of liquefied elemental metals into glass.
Scientists at Yale University have developed a faster way to identify and characterize complex alloys known as bulk metallic glasses (BMGs), which are stronger than steel. The new method allows researchers to screen about 3,000 alloys per day, significantly reducing the time needed for discovery.
Researchers develop new metallic glass with high elasticity, enabling more durable golf clubs and improved space science applications. The material's ability to be bent and spring back into shape is controlled by understanding the initiation of shear bands, which can lead to failure.
Researchers have discovered a new class of bulk metallic glasses that exhibit enhanced fatigue endurance, thanks to a unique staircase-like fracture mechanism. This breakthrough paves the way for widespread adoption in industries such as smartphones, biomedical implants and aerospace engineering.
Scientists studied how microscopic bubbles form and expand in metallic glass under negative pressure, finding they indicate a brittle breakdown is in progress. The research aims to optimize metallic glass alloys for high-strength and fracture-resistant applications.
Researchers identified a critical fictive temperature (CFT) that determines glass ductility, suggesting any glass can be made ductile or brittle by adjusting cooling rates. The study applies to all glasses, not just metallic glasses, and has implications for designing ductile glasses.
Metallic glass alloys are three times stronger than industrial steel but have variable breaking points due to preparation method. Researchers developed a novel computational technique that simulates and predicts the breaking points of metallic glasses, shedding light on their mechanical properties.
Researchers found local configurations of atoms that tend towards a more ordered structure compared to looking at the whole structure. The underlying order in metallic glasses may hold the key to creating new alloys with specific properties.
Scientists at University of Wisconsin-Madison and Iowa State University have discovered a new nanometer-scale atomic structure in solid metallic materials known as metallic glasses. The findings provide insight into the properties of these materials, including ductility and formability.
Researchers investigated how initial free volume distribution impacts plasticity in metallic glasses (MGs). They found that a large amount of randomly distributed free volume leads to more potential sites for shear band initiation and branching, resulting in increased plasticity. However, too much free volume can also cause failure by ...
Scientists at Carnegie's Geophysical Laboratory have discovered a metallic glass that demonstrates long-range order among its atoms, a key characteristic of the elusive 'perfect glass' state. By applying high pressure, they were able to create a single crystal and preserve its structural order.
Researchers have discovered that metallic glass can form a single crystal at its core, offering new insights into its atomic structure and behavior. This finding may help improve the performance of commercially important materials such as anti-theft tags and power transformers.
Researchers at Caltech have developed a new method for processing metallic glass, utilizing inexpensive processes used to produce plastic parts. The new technique allows for the creation of strong, tough parts in just a few milliseconds.
A Caltech-led team has developed a new alloy that combines the strengths of metals and glasses, demonstrating unprecedented level of combined toughness and strength. The palladium-based alloy shows high toughness and strength, making it suitable for biomedical implants such as dental implants.
Researchers at Berkeley Lab and Cal Tech have developed a new type of damage-tolerant metallic glass that outperforms any known material. The glass's unique composition promotes extensive plasticity, allowing it to bend rather than crack under stress.
Scientists at Carnegie Institution used high-pressure techniques to study the connection between density and electronic structure of a cerium-aluminum metallic glass, opening up new possibilities for developing metallic glasses. The research found that high pressure causes changes in properties such as volume or electronic behavior, re...
Researchers at Caltech have developed a way to make brittle materials ductile by reducing their size, creating materials that are stronger than ever. The new materials could be used in aerospace vehicles and naval vessels, providing improved strength and durability.
Researchers have developed metallic glass alloys with improved fatigue resistance, surpassing conventional metal alloys in both strength and durability. The breakthrough involves introducing a second phase of crystalline metal within the glass, which acts as a local arrest point to prevent crack propagation.
Researchers at MIT have made significant progress in understanding the mysteries of metallic glass, a class of materials that has resisted analysis for decades. The discovery could lead to the rapid creation of useful new glasses made from metallic alloys with unique physical and magnetic properties.
Researchers at Ames Laboratory have developed a novel composite material that combines tungsten and metallic glass to create an armor-piercing projectile. The nanostructured material exhibits self-sharpening behavior, making it a potential replacement for depleted uranium in kinetic energy penetrators.
Johns Hopkins engineers discover that metallic glass atoms form unique Kasper polyhedra, joining together in clusters and forming cavities. This breakthrough advances materials science knowledge and paves the way for intelligent design techniques to create materials with precise mechanical characteristics.
A new computational method developed by Widom and colleagues allows scientists to virtually predict the formation of amorphous metals and identify potential mixtures for metallic glass production. This approach has shown promising results in generating metallic glasses with remarkable corrosion resistance, strength, and elasticity.
Researchers at Los Alamos National Laboratory have successfully formed pure zirconium metal into glass at temperatures one-third of its melting point and pressures over 50,000 times atmospheric pressure. This breakthrough could lead to the development of stronger materials for various applications.