Articles tagged with Ceramics
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Researchers at Pusan National University discovered that tempered glass is more resistant to water-promoted fracture growth than annealed glass. The study found that water droplets penetrate microcracks in glass surfaces, dissolving silicon-oxygen bonds and degrading mechanical strength.
Researchers discovered a resemblance between magic graphene's superconductivity and high-temperature superconductors, shedding light on the mysterious ceramic compounds. The study provides evidence for unconventional superconductivity in magic bilayer graphene.
A new composite ink composed of ceramic particles in polymer acrylonitrile-butadiene-styrene (ABS) has been developed to make foldable electronics easier and cheaper to manufacture. The ink enables the creation of flexible, large-area dielectric substrates suitable for millimeter-wave devices, including 5G antennas.
Researchers found that Maya rulers altered their cities' structures and alignments to reflect their own desires and authority. Many temples were built on top of existing ones or abandoned altogether, shifting the focus from community ritual to ruler-centric politics.
Researchers have discovered that MAX phases ceramics can form kink-bands under loading, which can effectively stop cracks from growing and even close and heal them. This self-healing mechanism makes MAX phases suitable for a variety of advanced structural applications, including efficient jet engines and safer nuclear reactors.
Researchers at Rice University have created a coating made of soft polymer that can help keep knotty ceramic structures from shattering. The coating was tested on complex lattices called schwarzites, which were found to be up to 4.5 times more resistant to catastrophic fractures.
Scientists have developed a method to manufacture inorganic monoliths from amorphous calcium carbonate particles using pressure-driven fusion. This process creates flexible and strong exoskeletons similar to those found in nature.
The researchers have successfully mechanically imprinted atoms in ceramic, achieving improved electroceramic properties. This method allows for the creation of well-ordered fields of newly occupied atomic rows, which control local polarisation and load dislocation in the material.
Researchers at University of Michigan identify key questions in developing lithium metal solid-state batteries for increased EV range and improved safety. However, addressing these challenges, such as ceramic production and battery management system design, is crucial to their commercialization.
Researchers have developed ceramic materials to enhance circulators, critical devices for 5G applications, by replacing yttrium with bismuth to increase energy density and enable miniaturization
A study found traces of grapevine products in Sicilian amphorae, suggesting local wine trade persisted during the Byzantine-Islamic transition. Grape syrup and vinegar were also detected, used as preservatives in medicinal purposes and cuisine.
Researchers developed a ceramic fuel cell with reduced nickel content, improving stability and performance by 1.5 times compared to conventional cells. The new technology suppresses reduction-oxidation failure, allowing for frequent start-ups in applications like electric vehicles.
Researchers at Far Eastern Federal University develop a new approach to high-speed synthesis of Nd3+:YAG optical ceramics, reducing consolidation time by 10-100 times and improving their transparency. The technique enables the production of diode-pumped microlasers with short lasing pulse duration, high peak power, and beam quality.
Researchers at Pohang University of Science & Technology developed a multi-functional separator to trap moisture and impurities in lithium-ion batteries. This breakthrough allows for battery assembly in ambient air, reducing costs and improving performance, with excellent heat resistance and electrochemical stability demonstrated.
A research team at KAIST has developed a highly deformable ceramic piezoelectric material that can convert mechanical stimuli into electrical signals. The material's elastic strain limit is three times greater than that of bulk zinc oxide, making it suitable for advancing high-performing haptic technology.
Researchers have discovered a camp with a warehouse on the Dutch islands of Curaçao and Bonaire, revealing everyday objects from the first half of the eighteenth century. The findings shed light on the impact of informal maritime commerce on society and daily life in colonial communities.
Skoltech researchers have developed a novel method for designing and manufacturing complex-shaped ceramic bone implants with controllable porous structures. The FRep method enables the creation of variable density implants tailored to individual patient needs, enhancing tissue fusion efficiency and overall implant performance.
Researchers at TU Graz's new Christian Doppler Laboratory aim to develop solid-state batteries with reduced interface resistances, enabling safer electric vehicles and high-energy applications. The lab focuses on improving lithium transport properties, surface modifications, and material combinations to overcome current limitations.
An interdisciplinary collaboration has updated the small polaron hopping model to reflect different pathways for conduction in ceramics, enabling researchers to customize metal oxide properties. The new model reveals large energetic barriers associated with switching conduction paths between cations.
Cuttlebone's unique chambered 'wall-septa' design optimizes weight, stiffness, and damage tolerance, allowing for controlled failure and energy absorption. The structure's wavy walls induce fractures at the middle of walls, limiting external impact.
A new colloid recipe reduces debinding and sintering time for glass and ceramic 3D printing, allowing for faster production of complex structures. This breakthrough enables the creation of parts with accurate geometries, weight reduction, and increased strength.
A new photonic film inspired by fluffs on the longicorn beetle can reflect up to 95% of incoming solar radiation and emit infrared energy, achieving up to 5.1° C of passive cooling in direct sunlight. The film's efficiency is a breakthrough for efficient passive radiative cooling applications.
A straightforward fabrication method has been introduced by researchers from Osaka University to improve the gas sensing performance of common ceramic coatings. The new method involves depositing a thin, porous titanium dioxide film onto a surface using spin coating, resulting in a significant increase in detection speed and accuracy.
A new study by University of Wisconsin-Madison researchers reveals that silicon carbide's grain boundaries are susceptible to radiation-induced segregation, affecting the material's chemistry. This discovery could aid in fine-tuning ceramic materials for high-tech applications like nuclear energy and jet engines.
A new ultrafast high-temperature sintering method has been invented, promising applications in solid-state batteries, fuel cells and 3D printing technologies. The process requires less than 10 seconds of total processing time, compared to traditional furnace approaches that take hours.
The KIST research team developed a high-performance ceramic fuel cell that can operate at mid-to-low temperatures below 600°C using butane fuels. This technology enables the use of affordable fuels like butane in smaller, integrated systems for portable and mobile power sources.
Scientists have developed Y2O3-MgO nanocomposite ceramics with uniform distribution of two phases, microhardness over 11 GPa, and average grain size of 250 nm. The new material can transmit over 70% of IR-range light with wavelength up to 6,000 nm.
Researchers at Purdue University have developed ceramic nanotubes that behave as thermal antennas, controlling the spectrum and direction of high-temperature heat radiation in gas turbines. This allows for increased engine lifetime and performance.
Researchers at UTA are exploring ceramic and non-metallic materials to fabricate advanced temperature and heat flux sensors for hypersonic flight systems. The new additive manufacturing concept aims to provide reliable measurements in harsh environmental conditions.
Researchers at Purdue University developed a new process to make ceramic materials more ductile and durable. The 'flash sintering' technique adds an electric field to conventional sintering processes, resulting in enhanced plasticity and resistance to brittle failure.
Engineers at UC San Diego and Riverside developed a new ceramic welding method that doesn't require a furnace. The process uses ultrafast pulsed lasers to melt ceramic materials along the interface, creating strong welds.
Researchers from Far Eastern Federal University propose pre-annealing green bodies to regulate mesostructure, leading to reduced porosity and improved laser efficiency. The study aims to establish a detailed correlation between initial green body homogeneity and final material properties.
A 14th-century tsunami devastated coastal settlements in Sumatra, leading to a shift in the region's political economy. The disaster redirected history, paving the way for the formation of the Aceh sultanate.
Huachen Cui, Ryan Hensleigh, Hongshun Chen and Xiaoyu Zheng won the JMR Paper of the Year Award for their work on additive manufacturing and high-temperature ceramic metamaterials. The paper demonstrates an approach to fabricate three-dimensional microarchitected materials with high specific strength.
Researchers recreated ancient brewing techniques to analyze ceramic beer vessels from Cerro Baúl. They found that the vessels were made of clay from nearby sources and that the beer was made of pepper berries, a drought-resistant ingredient. This steady supply of beer helped keep Wari society stable by forming unity among populations.
The Art Institute of Chicago has made significant new research on five terracotta sculptures from the 12th to 15th centuries, confirming they were created as a group and date back over 800 years. The use of CT scanning and thermoluminescence testing revealed exceptional craftsmanship and uniqueness among the sculptures.
Researchers found a correlation between bismuth ferrite's structure and its magnetic properties, which can help create new materials with specific properties. The study revealed that structural distortions caused by substitutions, lattice defects, and exchange interactions affect the material's magnetic behavior.
Researchers from NUST MISIS have developed a new method for producing bulk MAX-phases, which exhibit the properties of both metals and ceramics. The proposed approach allows for quick synthesis in one stage, resulting in high-density materials suitable for high-temperature applications.
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 Clemson University are working on a new 3D-printing technique involving rapid laser processing to create protonic ceramic electrolyzer stacks that convert electricity to hydrogen. This technology could lead to cars that go 1,000 miles per fill-up and smartphones that can run for days without recharging. The new technique...
A University of Melbourne researcher has developed an organic, non-combustible and lightweight cladding core using ceramic particles activated by electrical cable insulation. This breakthrough material has been tested to withstand temperatures of 750 degrees Celsius and achieves Australian and International Standards on combustibility.
Researchers discovered a unique bioceramic saddle structure in the mantis shrimp's limbs that stores elastic energy without breaking. The structure consists of two layers with different materials, allowing it to withstand large forces and enable rapid raptorial strikes.
The researchers are developing new materials based on 'laser ceramic - thermoelectric' heterostructures to improve the performance characteristics of final materials in several ways. They aim to create a structure where SrTiO3 and TiO2 grains are located in a 'checkerboard' order throughout all the volume of the material.
Researchers at CityU developed a novel ceramic ink to print flexible and stretchable ceramic precursors, enabling complex shapes like origami folding. These precursors can undergo self-reshaping after heat treatment, resulting in mechanically robust and high-strength ceramics.
Researchers at the University of Michigan have developed a new rechargeable battery technology using lithium metal that can double the output of current lithium ion cells. The ceramic electrolyte-based approach eliminates the historic issues of poor durability and short-circuiting, enabling faster charging rates and longer lifetimes.
Reinforced mortar coating improves the compressive strength of clay bricks, increasing their capacity to withstand external loads. The experimental results indicate an increase in both coated and non-coated prisms, with a significant improvement in the load-carrying capacity.
Researchers at NYU Langone Health successfully guided the regrowth of missing bone in lab animals using chemically coated ceramic implants. The implants, made from beta tricalcium phosphate and dipyridamole, were naturally absorbed by the test animals' bodies as new bone gradually replaced the devices.
Researchers from Far Eastern Federal University have developed a new type of optical ceramic material that outperforms commercial glass and single crystals in physical and mechanical characteristics. The innovative material, YAG:Nd with high neodymium ion concentration, enables faster synthesis and improved control over its functionality.
Purdue researchers have found a way to overcome the brittle nature of ceramics by applying an electric field during sintering, resulting in materials that can deform like metals at room temperature. This innovation enables the creation of more stable ceramic components for aircraft engine blade coatings and dental implants.
Scientists at Shinshu University develop a thin and dense connecting layer between electrodes using cubic crystal growth, improving lithium ion battery efficiency and addressing temperature issues.
A genomic study of ancient and modern horses reveals that the Botai horses, who lived on Central Asian steppes 5,500 years ago, did not contribute to the modern domesticated horse population. However, seven Przewalski's horses, an endangered feral group, show a connection to the original Botai group.
Researchers from Sun Yat-Sen University have developed a new type of optical ceramic material using metal-organic frameworks, which can be transparent or optically clear. The material has been shown to have high optical transmittance and can be used for applications such as lasing gain medium and amplified spontaneous emission.
Dr. Federico Rosei, a renowned professor and researcher, has been invited to join the prestigious World Academy of Ceramics as an Academician in recognition of his groundbreaking work on nanoscale functional materials. His research has led to significant advances in solar, optoelectronic, and biomedical technologies.
University of Texas researchers use supercomputer simulations to study how blast waves affect the brain's perineuronal nets, potentially leading to life-threatening injuries. They also explore materials for space shuttles, aiming to improve their durability and performance.
Researchers at MIT have developed a new approach to rechargeable batteries using a metal-mesh membrane, which overcomes the limitations of previous ceramic membranes and enables cost-effective power storage for large-scale installations.
Researchers at Rice University have developed a new ceramic material that combines the benefits of white graphene with calcium-silicates. The resulting composite has improved strength, toughness, and thermal conductivity, making it suitable for high-performance applications in construction, nuclear power plants, aerospace, and more.
Researchers examined artificial joints used for total hip replacement and found ceramic components experience less corrosion than cobalt-chromium. The findings suggest improvements to artificial joints for better outcomes.
Researchers discovered a unique process to create highly resistant lenses using calcite nanoparticles, mimicking the brittle starfish's ability to produce super-tough glass. This breakthrough could lead to improved materials for optical lenses, automotive turbochargers, and biomaterial implants.
Scientists from Kiel University and University of Trento create stable 3D network of carbon nanotubes using wet chemical infiltration process. The method retains beneficial properties of CNTs, enabling applications in battery technology, medical implants, sensors, and electronic components.
HRL Laboratories has received a NASA award to develop additive manufactured ceramic rocket engine components. The company's technique combines polymer additive manufacturing with high-temperature ceramics, enabling new designs, lower costs, and reduced lead time.