Articles tagged with Powders
Researchers have made two discoveries that expand additive manufacturing in aerospace and other industries relying on strong metal parts. They presented a process map to help manufacturers avoid generating defects during laser powder bed fusion.
TalTech's new generation monograin layer solar cells have been developed with a focus on reducing the ecological footprint and increasing efficiency. The Cu2CdGe(SxSe1?x)4 semiconductor material shows promising results, with a power conversion efficiency of 6.4%.
A recent analysis found that nearly 15% of talc-based cosmetics products contain asbestos, a deadly human carcinogen. The study highlights the need for rigorous testing methods and safer regulations to protect consumers from potential harm.
Researchers at NUST MISIS develop nanocarbon additive from oil waste to improve aluminum 3D printing properties and create high-quality aerospace composites. The new technology reduces material porosity and increases hardness.
Scientists developed a new approach to decipher the atomic-level structure of materials using data from ground-up powder samples. This 'genomic' method solves complex structures by building and evaluating all plausible arrangements of atoms, revealing details of promising sodium-ion battery material NVPF.
Researchers from Imperial College London found that non-absorptive creams and powders like talcum powder and coconut oil-cocoa butter mixtures are most effective in providing long-lasting skin protection for PPE wearers. These products create a protective layer between skin and PPE, reducing friction and shear injuries.
Researchers propose multifunctional liquid metal nanocapsules with tunable polylactone shells for improved thermal/photo-molding properties, electric conductivity, and notch-insensitive tearing. The powder of LM capsules combines exceptional properties of liquid metals and polylactone shells.
Researchers at Michigan Tech and the University of Illinois are working on a project to convert plastic waste into protein powder and lubricants using chemical and high heat deconstruction. The team aims to develop a system that can break down plastic quickly, producing nutritional supplements and fuel.
Researchers have developed a novel powder method for efficiently evaluating electro-optic coefficients, enabling the discovery of promising new crystals. The approach uses second harmonic generation, infrared reflectance spectrum, and Raman spectroscopy to predict electro-optic coefficient magnitude.
Researchers at Oak Ridge National Laboratory developed an AI software named Peregrine for powder bed 3D printers, assessing part quality in real-time. The software uses convolutional neural networks to analyze images and detect anomalies, alerting operators for adjustments.
Researchers studying cichlid fishes aim to understand genetic mechanisms controlling facial development, which may also apply to humans. The study's findings could help determine if certain medications prescribed for human diseases might cause facial malformations in unborn babies.
Advanced computer simulation techniques have determined which low-and-middle income countries would benefit from using iron-containing micronutrient powders to tackle childhood anaemia, with 54 out of 78 countries showing a net benefit. Policymakers can use individual reports for each country to balance benefits and risks.
Researchers invent new laser inversion technique to overcome SLS limitations, enabling simultaneous printing of multiple materials. The process allows for stronger, denser materials and complex multi-material parts without assembly, expanding industries such as aerospace, automotive, and robotics.
Researchers developed antioxidant-rich powders from blueberry and persimmon waste, which showed beneficial effects on gut bacterial growth. The findings suggest that these powders could be used to boost carotenoids and anthocyanins in food formulations, potentially promoting human health.
Chemists at MIT have developed a way to modify thermoset plastics with a chemical linker that makes them easier to break down after use, retaining mechanical strength. They successfully produced a degradable version of pDCPD and reused the powder to form new material.
Scientists at Empa used 3D laser printing to produce materials with specific magnetic properties. By varying the size and lifetime of the melt pool, they were able to create alloy compositions with precise control over nitrogen content.
Researchers discovered that controlling laser power can mitigate spatter issues in L-PBF printing, reducing the formation of defects and deformations. This breakthrough could lead to more reliable and high-quality prints, revolutionizing manufacturing in advanced fields.
Researchers at ICFO have developed a new photothermal sensitizer using tungsten oxide nanoparticles, enabling the production of high-color-purity 3D objects and overcoming previous limitations. The new method allows for efficient and cost-effective fabrication of complex geometries with precise color control.
Researchers at the University of Copenhagen found that fava beans can be processed into a concentrated protein powder using a unique method called wet fractionation, which increases protein content and improves digestibility. Fava beans are also more climate-friendly than soy due to local cultivation and reduced genetic modification.
Researchers used network pharmacology to analyze Zhichan powder's effects on Parkinson's disease, identifying 18 major active components. This study provides new insights into the mechanism of action of Traditional Chinese Medicine prescriptions.
Scientists propose a new method to produce thermally stable single-atom catalysts (SACs) with high metal loading. The method uses a simple and environmentally friendly approach, achieving kilogram-level production of commercial Fe2O3 supported Ru SACs.
Researchers at Stanford University have discovered a method for synthesizing pure diamonds from hydrogen and carbon molecules found in crude oil and natural gas. The process uses high pressure and surprisingly little heat, producing tiny specks of diamond in the lab.
Researchers at NC State University have developed a new technique for shielding electronics from ionizing radiation, using oxidized metal powder - rust. The approach reduces weight and improves shielding, with potential applications in space exploration technology and aerospace devices.
Researchers at Emory University found that mixing different molecular sizes of polymers within a solution increases the ability of a thin film to stretch without breaking. This discovery holds implications for improving industrial processes like oil flow through pipes and foam clearance in streams and rivers.
Researchers pooled data from four large studies involving 250,000 women to investigate the association between powder use and ovarian cancer risk. The study found a statistically significant increase in ovarian cancer risk among women who used powder in their genital area.
Researchers at PPPL develop a safer, more effective way to create a star on Earth by injecting boron powder into plasma. This technique reduces greenhouse gases and long-term radioactive waste, while increasing heat output for electricity generation.
Researchers at Tallinn University of Technology have improved the efficiency of monograin layer solar cells by replacing copper with silver in absorber material. This innovation increases efficiency by 2%, making it an attractive solution for renewable energy production.
The MagLev method uses magneto-Archimedes levitation to separate and isolate different drugs from sample mixtures, allowing for precise identification. The technique can distinguish between up to seven substances simultaneously and has the potential to complement or replace existing portable drug identification techniques.
Researchers at Harvard University have developed a promising new tool called MagLev that can identify smaller concentrations of drug powders than any other device. The technology separates substances based on density and can handle far more substances than current quick-test options.
Researchers found that switching to dry powder inhalers from metered-dose inhalers could reduce carbon emissions by 58 tonnes annually, while also cutting drug costs. This switch could save the equivalent of 150-400kg of CO2 annually per individual.
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.
A comprehensive review paper provides a thorough understanding of the scientific and technological knowledge behind nanocomposite fabrication using selective laser melting. The study highlights the potential of this additive manufacturing technology for creating customized parts with unique structures and properties.
Researchers at Penn State have developed a novel method to create skim milk powders with enhanced properties and functionality, offering a potential replacement for synthetic emulsifying agents. The new processing technology could lead to the creation of foaming agents that are recognizable on food labels.
A GW pilot study found topical collagen powder to be as effective as primary closure for punch biopsy wound treatment and possibly superior in early cosmetic outcomes. The study showed that wounds treated with collagen healed at least as well as those treated with primary closure.
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...
Scientists from Forschungszentrum Jülich simplify production of MAX phases, a desirable material class. The new method uses a salt crust to protect raw material from oxidation at high temperatures, making industrial-scale production possible.
Researchers from the U.S. Army and top universities discovered a new way to enhance energetic performance of metal powders in battlefield systems by igniting aluminum micron powders coated with graphene oxide. The discovery, published in ACS Nano, could lead to improved range and lethality of existing weapons systems.
Scientists at the University of Waterloo have created a powder that can capture CO2 from factories and power plants, offering a promising solution to reduce greenhouse gas emissions. The powder is twice as efficient as conventional methods and has potential applications in water filtration and energy storage.
Researchers created AI2O3/Ti composites with improved fracture toughness, electrical conductivity, and photocatalytic ability through percolation structure and chemical treatment. The composites also showed machinability like metals and antibacterial properties.
A lack of production standards in the graphene market has led to inferior products being sold as high-grade. NUS researchers developed a reliable method for testing graphene quality, finding that most samples contained less than 10% real graphene flakes.
The US Advanced Battery Consortium has funded an extension of the patented lithium-ion battery recycling process developed at Worcester Polytechnic Institute. The process can recycle spent Li-ion batteries and produce new cathode materials, including nickel-rich cathodes for commercial-grade automotive batteries.
A study conducted in Brazil found that roasted jackfruit seeds can replace between 50% and 75% of cocoa powder in milk and coffee used to make cappuccino without impairing flavor or aroma. The researchers developed an instant powder containing coffee with milk and chocolate, which can be a potential substitute for traditional cappuccino.
Purdue University researchers have developed a cheap and stable sodium-ion battery alternative to lithium-ion batteries, using sodium powder to prevent 'getting lost' during charging and discharging. The new technology has improved cycling performance and capacity of the battery.
A team of scientists from OIST discovered that crater rays form when small objects create shockwaves in the ground, focusing sand grains along radial streaks. They developed a theoretical model to predict ray patterns and even use it to estimate the diameter of lost meteorites.
Scientists at Rice University have developed a method to produce strong, lightweight graphite pellets without the need for high-temperature processing. The pellets exhibit good conductivity and stability in various conditions, making them suitable for applications such as conducting cables and electrodes.
Using near infrared chemical imaging can help maintain the safety of pharmaceutical tablets by monitoring active ingredient concentrations in real time. This technique provides a larger sample area compared to spectroscopy, reducing the risk of missed segregation areas.
Researchers have found that lithium can eliminate periodic instabilities in plasma known as edge-localized modes (ELMs) when used to coat tungsten surfaces. This improvement has good news for future devices designed to work with lithium, which can damage the divertor and cause fusion reactions to fizzle.
Researchers describe a new, rare earth metal hydroxide compound with unique phosphor properties, potentially replacing traditional methods and reducing toxic emissions. The discovery has far-reaching implications for industrial applications and sustainable technology.
A team of researchers has created a process to transform residual toner powder from discarded printer cartridges into iron, offering an environmentally friendly way to reuse electronic waste. The method involves heating the toner powder to 1550 °C, resulting in a product with 98% pure iron.
A new study by The Arnhold Institute for Global Health found that microfinance institutions can effectively distribute essential health products to rural communities, leading to improved child health outcomes. Microfinance networks were used to deliver micronutrient supplements, resulting in a significant impact on the health of childr...
Scientists have successfully created a porous solid that retains its properties in both liquid and glass states. This discovery enables the development of more efficient industrial applications for these materials.
A Rutgers University study found that 83% of sindoor samples collected from the US and India had at least 1.0 microgram of lead per gram, exceeding FDA limits. Researchers urge government to take action as a public health issue, not relying on consumer choice.
A new study suggests that airblast injuries from the black powder torpedo may have killed the crew of the Confederate submarine HL Hunley. Researchers reconstructed the blast using a scale model and found that it could have caused pulmonary and brain trauma to the cabin crew.
Researchers developed a new method to tightly fix powder catalysts on electrode surfaces, addressing the challenge of high physical stress induced by gas evolving reactions. The technique involves applying an organic polymer that transforms into carbon at high temperatures, providing a stable and conductive surface for catalysis.
Researchers from Aarhus University and Arla found that concentrating milk on-farm using reverse osmosis does not negatively affect protein breakdown or free fatty acid levels. The quality of milk powder made from concentrated milk is comparable to ordinary milk.
The launch of MAPP marks a significant step towards addressing the challenges and opportunities surrounding advanced powder processes. Leading UK researchers, industry partners, and the High Value Manufacturing Catapult come together to develop new manufacturing technologies and improve outcomes for UK manufacturing.
Researchers developed a method to produce a metal nanopowder fuel with high energy content, stable in air and igniting only when ignited. The resulting material has an energy density of at least 89 kilojoules/milliliter, significantly superior to hydrocarbons.
Researchers found that traditional bullets for muzzleloading rifles and black powder rifle cartridges fragment less than modern high-velocity rifle bullets, suggesting a reduced risk of secondary lead poisoning. This could benefit hunters using these styles of guns and scavenging animals that consume game meat.
Researchers from the University of Copenhagen have reviewed the use of NIR spectroscopy to detect food fraud in Current Opinion in Food Science. The method can reveal far more food fraud than current methods, including intentional misrepresentation and undeclared introduction of cheaper substances. By examining large quantities of raw ...
Scientists have developed a new approach to capture carbon dioxide from flue gases using waste marble powder, outperforming current commercial calcium-carbonate sorbents. The powder showed high carbonation conversion rates and maintained its reactivity over multiple cycles.