Articles tagged with Alloys
Monash University researchers improved aluminum alloy design by introducing specific crystal defects, enabling rapid nucleation of a strengthening phase. The study's findings have implications for lightweight alloys used in the aerospace industry.
Scientists have revealed that gallium melt lacks stable crystalline domains and molecule-like Ga2 dimers, offering a fresh perspective on melt formation processes. Experimental data from neutron diffraction provided critical evidence to support this finding.
Researchers developed a concept to understand correlations between element selection, theoretical properties, and measurable parameters. This enables quick identification of promising candidates and optimisation of element proportions.
Scientists have created an alloy that generates hydrogen on demand, enabling the use of portable fuel cells. The innovative method uses a gallium-indium-tin-bismuth alloy to produce hydrogen when combined with water and aluminum.
Researchers have found that alloy metal nanoparticles facilitate faster carbon nanotube growth by attracting more active metal atoms to the growth front. This leads to a larger carbon concentration and quicker addition of carbon atoms, preventing precursor accumulation around the nanoparticle.
Rickman was recognized for his contributions to computational materials science, including the development of computer simulation methodologies and material informatics. He is a pioneer in understanding high-entropy alloys and their unique thermal and mechanical properties.
Researchers at RMIT University have developed a new titanium-copper alloy that can be 3D printed with exceptional properties. The alloy's fully equiaxed grain structure reduces the risk of cracking or distortion, making it suitable for high-performance applications in medical devices and aerospace.
Researchers created an alloy of titanium, tantalum and scandium that functions for a long time even at high temperatures. By adding a few percent of scandium, the alloy avoids the unwanted omega phase, which was previously a major limitation in high-temperature shape memory alloys.
Researchers developed mass production technology for solid-solution alloy nanoparticles, which can be used as innovative catalysts for exhaust gas purification. The new technology achieved stable synthesis of 1nm-class nanoparticles at low temperatures, outperforming existing rhodium-based catalysts.
A team of scientists has developed a new method for creating high-powered magnets using a simple hydrogenation process. The resulting compound has anti-ferromagnetic properties, making it non-magnetic.
Researchers at the University of Copenhagen are establishing a new center to study catalysis on high-entropy alloys, aiming to develop sustainable chemistry alternatives. The project aims to identify materials capable of combining carbon and oxygen-containing molecules to produce valuable chemicals.
Researchers found that rapidly cooled copper-based shape memory alloys performed better than slowly cooled samples due to the formation of nickel-rich dots. This discovery could lead to more energy-efficient HVAC and refrigeration systems using heat pumping technology.
Worcester Polytechnic Institute (WPI) has received a $25 million award from the US Army Combat Capabilities Development Command Army Research Laboratory to advance 3D printing technology. The new technique, called cold spray, can repair metal parts or make new ones by layering metal powders in a process known as additive manufacturing.
Researchers at The University of Texas at San Antonio aim to improve the design of AM parts that are less susceptible to hydrogen embrittlement. They will study the effects of high pressures, elevated temperatures, and hydrogen atoms on the nickel-718 alloy material.
Researchers at Immanuel Kant Baltic Federal University have developed a new metallic alloy that can be used in magnetic refrigeration technology, offering an environmentally friendly alternative to traditional refrigerants like freon. The manganese-arsenic alloy shows promising results for solid-state cooling at room temperature.
Researchers at Pacific Northwest National Laboratory have developed a single-step manufacturing process to produce nanostructured rods and tubes directly from high-performance aluminum alloy powder. The process, called ShAPE, achieves significant improvements in product ductility while eliminating multiple steps required in conventiona...
A new method called plainification aims to enhance material properties by creating stable interfaces between grains at different scales, using fewer or no alloying elements. This approach could lower material costs, increase resource independence, and boost recyclability, paving the way for more sustainable materials development.
Researchers from IKBFU investigated the influence of internal mechanical stresses on glass-coated amorphous microwires. The study, published in Journal of Magnetism and Magnetic Materials, focuses on optimizing magnetostrictive, magnetostatic, and magnetodynamic properties.
Researchers used high-throughput screening to design new multi-component alloys for biomedical applications, achieving efficient composition optimization and improved mechanical properties. The study employed a novel approach combining co-sputtering technology with physical masks to create compositional gradients.
A Yale-led team discovered that molten iron alloys containing silicon and oxygen form two distinct liquids under conditions similar to those in the Earth's core, mimicking the separation of oil and vinegar in salad dressing. This finding provides new insights into the evolution of Earth's magnetic field.
Researchers used ultrashort x-ray pulses to monitor absorption of circularly polarized x-rays by Fe and Gd atoms during ultrafast demagnetization. They found that the demagnetization process at Gd atoms is significantly faster than in pure Gd.
Scientists have found a surprising quantum effect in cobalt-iron alloy materials commonly used in hard disk drives. By controlling electron spin direction, the researchers can alter magnetic state, allowing for more efficient information storage and potential applications in electric motors, generators, and magnetic bearings.
Scientists have created amorphous softmagnetic alloys with high magnetic properties, technological plasticity, and ultrahigh strength. The new iron-based alloys surpass common industrial analogues in terms of their properties, offering relatively low cost and simplicity of industrial production.
HRL Laboratories' breakthrough alloy is the world's first printable high-strength aluminum, registered with the Aluminum Association. The registration validates its commercial value and enables companies to access the alloy through specific powder numbers.
The development of a new generation of catalysts is crucial to meet the world's demand for clean energy. Researchers at the University of Copenhagen have made a breakthrough in finding better, cheaper catalysts using high-entropy alloys, which can aid the conversion of chemical substances in chemical reactions.
A new tungsten-based alloy developed at Los Alamos National Laboratory has shown outstanding radiation resistance, retaining mechanical properties after exposure to high levels of radiation. The material's unique composition and structure have been found to be key factors in its exceptional performance.
A group of researchers in India has developed an iron-platinum alloy that can overcome the thermal stability issues limiting its use as a material for future hard disk drives. By tweaking the L10 phase, they achieved a significant enhancement of the transformation rate and reduced the ordering temperature below 300 degrees C.
Scientists at FEFU create non-destructive method to visualize and quantify defects in transparent materials like single crystals, glasses, and ceramics. The method uses confocal laser scanning microscopy (CLS) to retrieve characteristics of high-density objects with enhanced precision.
Researchers at Chalmers University of Technology have developed a new electrochemical process to clean mercury from water, reducing its content by over 99%. The technique uses a platinum electrode to form an alloy with mercury, creating a stable and recyclable material.
Researchers at Idaho National Laboratory discovered a way to make superalloys more resistant to heat-related failures, allowing them to withstand high temperatures six times longer than untreated counterparts. This breakthrough could improve materials performance in electricity generators and nuclear reactors.
Researchers developed a long-life metal-O2 battery using Li-Na eutectic alloy, exhibiting similar reaction activities to other alloys and suppressing dendrite growth. The study also introduced efficient O2 reduction/evolution catalysts to improve cycling life and rate capability.
Researchers at Tohoku University have found new good catalysts using unique Heusler alloys, enabling the replacement of expensive Pd-based catalysts. The discovery also offers insight into the mechanisms of catalysis on alloys, paving the way for further investigation.
A team of researchers has discovered a noble metal-free catalyst system that is as active as platinum, thanks to the high entropy effect. The alloy, made up of five elements, forms new active centers that offer entirely new properties and are relevant for catalysis.
Researchers from Brown University have developed a new alloy catalyst that reduces platinum use and maintains its activity after 30,000 voltage cycles. The catalyst's layered structure enhances reactivity while protecting cobalt atoms from degradation, outperforming traditional platinum alloy catalysts in fuel cell testing.
A new catalyst has been developed to improve Solid Oxide Fuel Cell (SOFC) performance by forming a self-assembled alloy at the surface. The catalyst was tested using methane gas directly, operating stably for over 500 hours with four times higher reaction efficiency than previous catalysts.
Scientists create six-step cycle that uses magnetic materials to cool down, reducing greenhouse impact of traditional refrigerants. The technology could be more efficient than vapor compression and has potential for widespread use.
The Centauro robot has been designed to assist rescue workers in disaster scenarios, with capabilities including robust locomotion, high strength manipulation, and harsh interactions. Its mobility skills have been validated through various tasks, such as manipulating heavy objects and breaking wood pieces.
Researchers at NIST have developed a new material for making nickels that is 40% less expensive to produce, reducing the cost of materials from seven cents to five cents per coin. The new design uses an integrated computational materials engineering framework and advanced alloys to achieve this cost reduction.
Empa researcher Sebastian Siol develops new phase of manganese selenide and telluride alloy, displaying useful piezoelectric properties. The material combination is promising for various applications such as smart windows, gas sensors and semiconductor coatings.
Russian scientists developed smart materials to create high-strength and plastic alloys, enabling efficient use in microelectronics and aviation. The project's goal is to achieve homogeneity of the microstructure and nano-dispersity, resulting in a combination of high strength and plasticity.
Researchers from Tokyo Metropolitan University have created new superconductors made of layers of bismuth sulfide and a high entropy rare earth alloy oxyfluoride. The new material retains superconducting properties over a wider range of lattice parameters than materials without high-entropy-alloy states.
Researchers simulated conditions inside a planet three times larger than Earth using high-powered laser beams. The study revealed that the crystal structure of iron-silicon alloys changes with higher silicon content under extreme pressures, providing new insights into the nature of super-Earths and their cores.
Researchers Arvind Kalidindi and Christopher A. Schuh developed a Monte Carlo-based simulation to determine the minimum free energy state of nanocrystalline alloys. They produced equilibrium phase diagrams for these alloys, shedding light on grain size changes with temperature.
Scientists at the University of Maryland have created nanoparticles composed of up to eight distinct elements, greatly expanding the landscape of nanomaterials. This breakthrough enables a wide range of applications in catalysis, energy storage, and bio/plasmonic imaging.
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 at Oregon State University have developed a 3D printable alloy that enables the rapid manufacture of flexible computer screens, bendable displays, and soft robots. The new alloy, created by adding nickel nanoparticles to galinstan, can be layered into tall structures with good conductivity and self-healing properties.
The discovery of a shape-memory mechanism in synthetic organic materials could lead to advancements in low-power electronics and medical devices. The researchers found that the transformation process is driven by concerted movement of molecules, enabling reversible and ultrafast shape changes.
KAUST researchers have created boron-nitride-based alloys with tunable polarization, a crucial property for computer memory. By varying the atomic composition, they can control the spontaneous polarization and piezoelectric constants of these materials.
Researchers at Nagoya University have successfully produced planar stanene, a two-dimensional material that exhibits unique electronic properties. The discovery has significant implications for the development of high-performance electronics and computing.
Researchers at UCL and Tufts University developed a platinum-copper alloy catalyst that breaks carbon-hydrogen bonds in methane with reduced energy consumption. The new catalyst is resistant to coking, rendering it more effective than traditional materials.
Researchers at Ruhr-Universität Bochum have developed a novel process for analyzing the temperature and oxidation resistance of complex alloys, reducing test time from months to days. The method, which combines multiple techniques, allows for rapid testing of high-performance materials.
Researchers at Oak Ridge National Laboratory have developed a precision de-icing technology that uses high-resolution modeling to identify areas most vulnerable to drivers during hazardous weather conditions. The team also discovered a function of certain microbes that produces a new derivative of vitamin B12, which could enhance the e...
The Christian Doppler lab at TU Graz aims to understand thermomechanical processes in high-performance alloys. Researchers will use various methods to characterise and model physical phenomena, with a focus on non-ferrous alloys such as titanium and aluminium.
Researchers at the University of Pittsburgh are developing advanced strategies to reduce the adverse effects of extremely high-temperatures on gas turbines. They are exploring applications for an anti-oxidation coating that can help cool airfoils and other hot-section components, enabling higher temperature operation for better efficie...
Scientists at Tomsk Polytechnic University are creating hydrogen-resistant products from titanium alloys using additive manufacturing. They plan to print aircraft parts out of BT6 and BT9 titanium alloys, aiming to improve properties such as wear resistance and corrosion resistance.
Researchers found that adding nanoparticles to liquid crystals improves their mechanical performance by increasing their lubricating properties. The study used a formula to approximate mobility of dislocations and performed numerical simulations to understand how Cottrell clouds erode when dislocations move at high speed.
At randomly selected high-angle general grain boundaries in a nickel-bismuth polycrystalline alloy, researchers found that interfacial reconstruction can form ordered superstructures. These segregation-induced superstructures enrich theories and fundamental understandings of grain boundary segregation and liquid metal embrittlement.
Researchers at FAU have discovered a new material concept that enables more efficient and cost-effective catalysts. Gallium-based alloy complexes show significant performance over standard technical catalysts, with minimal deactivation even when carbon deposits form.
Researchers developed a framework for designing tailored microstructure patterns in materials using a combination of theory and experiment. They successfully simulated the solidification process of an aluminum-silver-copper alloy, comparing their results with experimental photographs.
The study found that reducing oxygen in certain alloys can improve grain size stability, leading to stronger and more durable materials. Researchers developed nearly oxygen-free alloy powders with significant improvements in thermal stability.