Current Composite Materials News and Events

Current Composite Materials News and Events, Composite Materials News Articles.
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The magic angle of twisted graphene
Trapped tightly between two monolayers of carbon superimposed at a precise angle, electrons interact and can produce superconductivity. This is what UCLouvain's researchers reveal in an article published in Nature. This property allows electric power to circulate without any resistivity, without energy lost, within the nanostructure. (2021-02-23)

Spintronics: New production method makes crystalline microstructures universally usable
New storage and information technology requires new higher performance materials. One of these materials is yttrium iron garnet, which has special magnetic properties. Thanks to a new process, it can now be transferred to any material. Developed by physicists at Martin Luther University Halle-Wittenberg (MLU), the method could advance the production of smaller, faster and more energy-efficient components for data storage and information processing. The physicists have published their results in the journal ''Applied Physics Letters''. (2021-02-23)

Can bacteria make stronger cars, airplanes and armor?
Biological systems can harness their living cells for growth and regeneration, but engineering systems cannot. Until now.Researchers are harnessing living bacteria to create engineering materials that are strong, tolerant, and resilient. (2021-02-22)

Polymer film protects from electromagnetic radiation, signal interference
In a breakthrough report published in Advanced Materials engineers at the University of California, Riverside describe a flexible film using a quasi-one-dimensional nanomaterial filler that combines excellent electromagnetic shielding with ease of manufacture. (2021-02-22)

Electrons living on the edge
University of Tsukuba researchers calculated the electronic structure of topological insulators excited by laser beams and found that massless states can be generated. This work may lead to a major advance in computer technology with circuits that generate less heat. (2021-02-17)

Tapping into waste heat for electricity by nanostructuring thermoelectric materials
Thermoelectric semiconductors can convert waste heat into useful electricity. However, obtaining lead-free semiconductors with high thermoelectric performance has proven to be difficult. Now, scientists from Chung-Ang University, Korea, have developed a novel strategy to produce tin telluride (SnTe) nanosheets directly from tin selenide nanosheets (SnSe), the latter of which are easier to fabricate. Their strategy paves the way for better nanostructuring in SnTe, which greatly enhances its thermoelectric properties. (2021-02-16)

A comparative study of surface hardness between two bioceramic materials
This study aimed to evaluate the setting behaviour of MTA Angelus and NeoMTA by comparing their hardness after placing them in dry and moist conditions. (2021-02-16)

Moiré patterns facilitate discovery of novel insulating phases
Materials having excess electrons are typically conductors. However, moiré patterns -- interference patterns that typically arise when one object with a repetitive pattern is placed over another with a similar pattern -- can suppress electrical conductivity, a study led by physicists at the University of California, Riverside, has found. (2021-02-15)

Graphene "nano-origami" creates tiniest microchips yet
A team of experimental physicists at the University of Sussex have developed the smallest microchips ever - 100 times smaller than conventional microchips. They believe that this next generation of microchips could lead to computers and phones running thousands of times faster. (2021-02-15)

A groundbreaking solution? Polymers can protect buildings from large fault ruptures
University of Technology Sydney researchers have developed a solution to protect buildings sitting on deep foundations from earthquakes resulting in surface fault ruptures. Their findings show a composite foundation system using inexpensive polymer materials can significantly improve the safety of infrastructure and substantially decrease fatality and damage due to large ground deformations. (2021-02-15)

Producing more sustainable hydrogen with composite polymer dots
Hydrogen for energy use can be extracted in an environmentally friendly way from water and sunlight, using photocatalytic composite polymer nanoparticles developed by researchers at Uppsala University. In laboratory tests, these 'polymer dots' showed promising performance and stability alike. The study has been published in the Journal of the American Chemical Society. (2021-02-12)

Vibrating 2D materials
Two-dimensional materials hold out hope for many technical applications. An international research team now has determined for the first time how strongly 2D materials vibrate when electronically excited with light. (2021-02-11)

A scalable method for the large-area integration of 2D materials
Graphene Flagship researchers report a new method to integrate graphene and 2D materials into semiconductor manufacturing lines, a milestone for the recently launched 2D-EPL project. (2021-02-10)

The future of solar technology: New technology makes foldable cells a practical reality
International research team creates solar cells with unprecedented flexibility and resistance. (2021-02-10)

From trash to treasure: Silicon waste finds new use in Li-ion batteries
Researchers at Osaka University used Si swarf and ultrathin graphite sheets to fabricate Li-ion battery electrodes with high areal capacity and current density at a reduced cost. Increasing generation of Si swarf as industrial waste and potential use of the high-performance batteries in electronic vehicles will allow their work to contribute to reduced greenhouse gas emissions and the achievement of SDGs. (2021-02-09)

Male sex, BMI, smoking and depression all increase biological age
A 'biological age' score predicts that being male, overweight, a smoker and having depression all contribute to biological aging, a study published today in eLife reports. (2021-02-09)

Scientists create armour for fragile quantum technology
An ANU-led international team has invented the equivalent of 'body armour' for extremely fragile quantum systems, which will make them robust enough to be used as the basis for a new generation of low-energy electronics. (2021-02-08)

Two-phase material with surprising properties
Some materials can couple electrical and mechanical properties - this can lead to astonishing effects: New materials have been developed, consisting of both crystalline and amorphous regions. In these special polymers, the electro-mechanical coupling suddenly disappers - scientits at TU Wien have found out how. (2021-02-08)

A magnetic twist to graphene
By combining ferromagnets and two rotated layers of graphene, researchers open up a new platform for strongly interacting states using graphene's unique quantum degree of freedom. (2021-02-08)

New way to power up nanomaterials for electronic applications
UCLA materials scientists and colleagues have discovered that perovskites, a class of promising materials that could be used for low-cost, high-performance solar cells and LEDs, have a previously unutilized molecular component that can further tune the electronic property of perovskites. (2021-02-05)

Imaging technique provides link to innovative products
A study led by University of Georgia researchers announces the successful use of a new nanoimaging technique that will allow researchers to test and identify two-dimensional materials (2021-02-04)

UTA engineers develop programming technology to transform 2D materials into 3D shapes
University of Texas at Arlington researchers have developed a technique that programs 2D materials to transform into complex 3D shapes. (2021-02-04)

Using zirconium as an additive in super-strong composite materials
Ceramic matrix composites (CMCs) are incredibly strong materials used in jet engines, gas turbines, and cutting tools for nickel superalloys. Aluminum oxide (Al2O3) is hard and chemically inert, and tungsten carbide (WC) is used as a superhard material, but past efforts to create an Al2O3-WC CMC yielded unsatisfactory results. Recently, a study by Japanese scientists shows that adding zirconium atoms results in improved Al2O3-WC CMCs. (2021-01-28)

3D printing resins in dental devices may be toxic to reproductive health
Two commercially available 3D-printable resins, which are marketed as being biocompatible for use in dental applications, readily leach compounds into their surroundings. These compounds can induce severe toxicity in the oocyte, the immature precursor of the egg which can eventually be fertilized, reports a new study in mouse oocytes. (2021-01-28)

A vacuum-ultraviolet laser with submicrometer spot for spatially resolved photoemission spectroscopy
If vacuum ultraviolet lasers can be focused into a small beam spot, it will allow investigation of mesoscopic materials and structures and enable the manufacture of nano-objects with excellent precision. Towards this goal, Scientist in China invented a 177 nm VUV laser system that can achieve a sub-micron focal spot at a long focal length. This system can be re-equipped for usage in low-cost ARPES and might benefit condensed matter physics. (2021-01-27)

Scientists developed energy saving ceramic phosphors for high power LED systems
Materials scientists of Far Eastern Federal University (FEFU), in collaboration with an international research team, have advanced the design of composite ceramic materials (Ce3+:YAG-Al2O3), i.e. solid-state light converters (phosphors) that can be applied in ground and aerospace technologies. The LED systems based on the developed materials to save 20-30 percent more energy compared to commercial analogues. A related article was published in Materials Characterization. (2021-01-26)

Metamaterial tiles boost sensitivity of large telescopes
A multi-institutional group of researchers has developed new metamaterial tiles that will help improve the sensitivity of telescopes being built at the preeminent Simons Observatory in Chile. (2021-01-26)

Solar material can 'self-heal' imperfections, new research shows
A material that can be used in technologies such as solar power has been found to self-heal, a new study shows. (2021-01-26)

Graphene Flagship study predicts increased market penetration by 2025
Graphene Flagship experts identify key opportunities in graphene commercialisation after a comprehensive three-year analysis of production methods and potential applications. (2021-01-25)

3-D printed Biomesh minimizes hernia repair complications
A newly-designed 3D-printed Biomesh effectively minimized postsurgical complications of hernia repair in an animal model. (2021-01-25)

How does incident solar radiation affect urban canyons?
Toyohashi University of Technology proposed a numerical bead model to predict the upward-to-downward reflection ratio of glass bead retro-reflective (RR) material purposed for urban heat island (UHI) mitigation and reducing energy consumption. These results will contribute to existing research on the absorption or reflection of solar radiation to improve urban thermal and lighting conditions, and to reduce building energy consumption. (2021-01-25)

One-dimensional quantum nanowires fertile ground for Majorana zero modes
One-dimensional quantum 'nanowires' - which have length, but no width or height - provide a unique environment for the formation and detection of a quasiparticle known as a Majorana zero mode, which are their own antimatter particle. A new UNSW advance in detection of these exotic quasiparticles (just published in Nature Communications) has potential applications in fault-resistant topological quantum computers, and topological superconductivity. (2021-01-19)

Bio-inspired: How lobsters can help make stronger 3D printed concrete
New research addresses some of the technical issues that still need to be solved for 3D printed concrete to be strong enough for use in more free-form structures. Researchers found lobster-inspired printing patterns can make 3DCP stronger and help direct the strength where it's needed. And combining the patterns with a concrete mix enhanced with steel fibres can deliver a material that's stronger than traditionally-made concrete. (2021-01-19)

Spreading the sound
Tsukuba University scientists describe the diffusion of sound in disordered materials, such as glass, using a new mathematical model. This work may lead to stronger and cheaper displays for touchscreen devices. (2021-01-15)

New method makes better predictions of material properties using low quality data
By combining large amounts of low-fidelity data with smaller quantities of high-fidelity data, nanoengineers from the Materials Virtual Lab at UC San Diego have developed a new machine learning method to predict the properties of materials with more accuracy than existing models. Crucially, their approach is also the first to predict the properties of disordered materials--those with atomic sites that can be occupied by more than one element, or can be vacant. (2021-01-14)

Energy harvesting made possible with skin temperature
The Korea Institute of Science and Technology (KIST) announced that a collaborative research team led by Dr. Seungjun Chung from the Soft Hybrid Materials Research Center and Professor Yongtaek Hong from the Department of Electrical and Computer Engineering at Seoul National University (SNU) developed flexible thermoelectric devices with high power generation performance by maximizing flexibility and heat transfer efficiency. The research team also presented a mass-production plan through an automated process including a printing process. (2021-01-13)

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)

Mighty morphing 3D printing
Engineers at the University of Maryland have created a new shape-changing or ''morphing'' 3D printing nozzle, which offers researchers new means for 3D printing ''fiber-filled composites.'' (2021-01-06)

Impurities boost performance of organic solar cells
An electrochemical method for stabilizing a reactive molecule can help the development of higher efficiency solar cells. (2021-01-05)

Heat treatment may make chemotherapy more effective
The study, published in the Journal of Materials Chemistry B, found that ''loading'' a chemotherapy drug on to tiny magnetic particles that can heat up the cancer cells at the same time as delivering the drug to them was up to 34% more effective at destroying the cancer cells than the chemotherapy drug without added heat. (2021-01-05)

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