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Results 161 - 180 of 188.


Materials Science - Innovation - 06.03.2019
A self-healing composite
A self-healing composite
Researchers from EPFL's Laboratory for Processing of Advanced Composites have developed a material that can easily heal after being damaged. This cutting-edge composite could be used in aircraft, wind turbines, cars and sports equipment. When a wind turbine blade or an airplane is hit by something, the damaged part has to be either replaced or patched with resin.

Chemistry - Materials Science - 06.03.2019
Plumbing the Depths of Interfaces and Finding Buried Treasure
Plumbing the Depths of Interfaces and Finding Buried Treasure
By Lauren Chong Understanding the interfaces where solids and liquids meet is key to controlling a wide range of energy-relevant processes, from how batteries store energy to how metals corrode, and more. However, there are many unanswered questions around how these processes work at the atomic or molecular scale.

Music - Materials Science - 05.03.2019
Virtual noise
Virtual noise
Railway noise is annoying. Trains cause numerous sleepless nights, especially in the vicinity of residential areas. This makes it all the more important to optimize trains and tracks in such a way as to dampen sounds. Empa researchers have devised a computer simulation that demonstrates how railway noise is created in the first place and which technical measures are effective in preventing it.

Chemistry - Materials Science - 01.03.2019
Spider silk could be used as robotic muscle
Spider silk could be used as robotic muscle
Unusual property of the ultrastrong material could be harnessed for twisting or pulling motions. Spider silk, already known as one of the strongest materials for its weight, turns out to have another unusual property that might lead to new kinds of artificial muscles or robotic actuators, researchers have found.

Physics - Materials Science - 27.02.2019
Engineers make clear droplets produce iridescent colors
Engineers make clear droplets produce iridescent colors
Optical effect could be harnessed for light displays, litmus tests, and makeup products. In a paper , the team reports that a surface covered in a fine mist of transparent droplets and lit with a single lamp should produce a bright color if each tiny droplet is precisely the same size. This iridescent effect is due to "structural color," by which an object generates color simply due to the way light interacts with its geometric structure.

Physics - Materials Science - 25.02.2019
It's all in the twist: Physicists stack 2D materials at angles to trap particles on the nanoscale, creating a unique platform to study quantum optical physics
It’s all in the twist: Physicists stack 2D materials at angles to trap particles on the nanoscale, creating a unique platform to study quantum optical physics
Future technologies based on the principles of quantum mechanics could revolutionize information technology. But to realize the devices of tomorrow, today's physicists must develop precise and reliable platforms to trap and manipulate quantum-mechanical particles. In a paper published Feb. 25 , a team of physicists from the University of Washington, the University of Hong Kong, the Oak Ridge National Laboratory and the University of Tennessee reports that they have developed a new system to trap individual excitons.

Materials Science - 20.02.2019
Making Green Cars Greener
CMU Researchers Examine Ways To Recycle Electric Vehicle Batteries The widespread implementation of electric vehicles will go a long way toward eliminating the greenhouse gas emissions of the transportation sector. But these emissions don't just come from the tailpipe. There's another major culprit of greenhouse gases, one that the electric vehicle industry might need some help from policymakers to avoid: battery recycling.

Materials Science - Environment - 18.02.2019
Lobster's underbelly is as tough as industrial rubber
Lobster’s underbelly is as tough as industrial rubber
Membrane material's properties could guide design of flexible body armor, new study suggests. Flip a lobster on its back, and you'll see that the underside of its tail is split in segments connected by a translucent membrane that appears rather vulnerable when compared with the armor-like carapace that shields the rest of the crustacean.

Materials Science - Chemistry - 14.02.2019
Ers create ultra-lightweight ceramic material that can better withstand extreme temperatures
Ers create ultra-lightweight ceramic material that can better withstand extreme temperatures
UCLA-led team develops highly durable aerogel that could ultimately be an upgrade for insulation on spacecraft Matthew Chin UCLA researchers and collaborators at eight other research institutions have created an extremely light, very durable ceramic aerogel. The material could be used for applications like insulating spacecraft because it can withstand the intense heat and severe temperature changes that space missions endure.

Materials Science - Physics - 14.02.2019
Solar-powered supercapacitors could create flexible, wearable electronics
A breakthrough in energy storage technology could bring a new generation of flexible electronic devices to life, including solar-powered prosthetics for amputees. In a new paper published in the journal Advanced Science , a team of engineers from the University of Glasgow discuss how they have used layers of graphene and polyurethane to create a flexible supercapacitor which can generate power from the sun and store excess energy for later use.

Physics - Materials Science - 13.02.2019
World's finest gold specimen probed with Los Alamos neutrons
World’s finest gold specimen probed with Los Alamos neutrons
Los Alamos, New Mexico, Feb 13, 2019-Using neutron characterization techniques a team of scientists have peered inside one of the most unique examples of wire gold, understanding for the first time the specimen's structure and possible formation process. The 263 gram, 12 centimeter tall specimen, known as the Ram's Horn, belongs to the collection of the Mineralogical and Geological Museum Harvard University (MGMH).

Physics - Materials Science - 12.02.2019
Next-generation optics in just two minutes of cooking time
Next-generation optics in just two minutes of cooking time
One of the key building blocks of flexible photonic circuits and ultra-thin optics are metasurfaces. And EPFL engineers have now discovered a simple way of making these surfaces in just a few minutes - without needing a clean room - using a method already employed in manufacturing. Their findings have just been published.

Physics - Materials Science - 11.02.2019
Using artificial intelligence to engineer materials' properties
Using artificial intelligence to engineer materials’ properties
New system of "strain engineering" can change a material's optical, electrical, and thermal properties. Applying just a bit of strain to a piece of semiconductor or other crystalline material can deform the orderly arrangement of atoms in its structure enough to cause dramatic changes in its properties, such as the way it conducts electricity, transmits light, or conducts heat.

Materials Science - Chemistry - 11.02.2019
What does it take to make a better battery?
What does it take to make a better battery?
Cambridge researchers are working to solve one of technology's biggest puzzles: how to build next-generation batteries that could power a green revolution. A better battery could make all the difference. So what's holding up progress? Like many of us, when I wake up I reach for the phone on my bedside table and begin scrolling through Twitter, Instagram, email and news apps.

Chemistry - Materials Science - 10.02.2019
Turbocharged supercapacitors from new ionic liquids
Publication by Laboratoire de chimie, , on August 2019. A new article describes the discovery of a new class of electrolytes, which can improve energy storage efficiency in supercapacitors. A team of scientists from US, France, UK and Australia has worked out a way to improve energy storage devices called supercapacitors, by designing a new class of ionic liquids based on common, non-toxic chemicals.

Physics - Materials Science - 08.02.2019
Cryo-force spectroscopy reveals the mechanical properties of DNA components
Cryo-force spectroscopy reveals the mechanical properties of DNA components
Physicists from the University of Basel have developed a new method to examine the elasticity and binding properties of DNA molecules on a surface at extremely low temperatures. With a combination of cryo-force spectroscopy and computer simulations, they were able to show that DNA molecules behave like a chain of small coil springs.

Materials Science - Physics - 07.02.2019
Unleashing perovskites' potential for solar cells
Unleashing perovskites’ potential for solar cells
New results show how varying the recipe could bring these materials closer to commercialization. Perovskites - a broad category of compounds that share a certain crystal structure - have attracted a great deal of attention as potential new solar-cell materials because of their low cost, flexibility, and relatively easy manufacturing process.

Materials Science - Health - 07.02.2019
How safe is graphene?
How safe is graphene?
Graphene is considered one of the most interesting and versatile materials of our time. The application possibilities inspire both research and industry. But are products containing graphene also safe for humans and the environment? A comprehensive review, developed as part of the European graphene flagship project with the participation of Empa researchers, investigated this question.

Chemistry - Materials Science - 06.02.2019
Offers First Complete Picture of Lithium-Ion Battery Performance
Offers First Complete Picture of Lithium-Ion Battery Performance
By Ali Sundermier Note: This article was adapted from an original press release published by SLAC National Accelerator Laboratory. View the original release. One issue plaguing today's commercial battery materials is that they are only able to release about half of the lithium ions they contain. A promising solution is to cram cathodes with extra lithium ions, allowing them to store more energy in the same amount of space.

Materials Science - 31.01.2019
New Materials Exhibit Split Personality
New Materials Exhibit Split Personality
What's the discovery? Julia Greer , professor of materials science, mechanics and medical engineering in Caltech's Division of Engineering and Applied Science, creates materials out of microand nano-scale building blocks that are arranged into sophisticated architectures that can be periodic, like a lattice, or arbitrary.