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Archive for the ‘materials’ category: Page 205

Apr 23, 2020

Researchers discover ferroelectricity at the atomic scale

Posted by in categories: electronics, materials

As electronic devices become progressively smaller, the technology that powers them needs to get smaller and thinner.

One of the key challenges scientists face in developing this technology is finding materials that can perform well at an ultrathin size. But now, Berkeley researchers think they may have the answer.

Led by Sayeef Salahuddin, professor of electrical engineering and computer sciences, and graduate student Suraj Cheema, a team of researchers has managed to grow onto silicon an ultrathin material that demonstrates a unique electrical property called ferroelectricity. The duo’s findings were published in the April 22 issue of Nature.

Apr 23, 2020

Diamond chips to make meaner, greener electronics

Posted by in categories: computing, materials

Circa 2010


An economical way to make sheets of the blingest material known to man could bring a new era of high-power electronics that don’t need cooling.

Apr 21, 2020

Radiation: In physics, radiation is the emission or transmission of energy in the form of waves or particles through space or through a material medium

Posted by in categories: materials, particle physics

In physics, is the emission or transmission of energy in the form of waves or particles through space or through a material medium.[1][2] This includes:

Apr 18, 2020

Research: Adding Graphene to Concrete Produces Super-Strong Mix That Could Assist in Storm Resilience

Posted by in categories: materials, nanotechnology

A new nanotechnology promises to make future concrete stronger and more resilient.

Apr 17, 2020

Phase-change fabric both warms and cools its wearer

Posted by in category: materials

The more clothing that you wear, the warmer you are … right? Well actually, scientists have developed a new textile that both warms wearers in cold environments, and cools them down when things heat up.

The experimental material was developed at China’s Huazhong University of Science and Technology, by a team led by Prof. Guangming Tao. It’s made by first freeze-spinning silk and chitosan, forming fibers with a porous microstructure – chitosan, incidentally, is a highly useful natural compound found in crustacean shells.

Next, the pores within the fibers are filled with polyethylene glycol (PEG), which is a phase-change material that takes the form of a liquid when warm, and a solid when cool. Finally, the fibers are coated with an organic polymer known as polydimethylsiloxane, to keep the PEG from leaking out while in its liquid state.

Apr 15, 2020

Behold the “Quasar Tsunami,” Which Can Kill an Entire Galaxy

Posted by in categories: cosmology, materials

O,.o possible higgs field containment device could stop the rupture and other ways to destroy the root of the problem too.


New data from NASA’s Hubble Space Telescope details what may be the most powerful phenomena in the universe: the “quasar tsunami,” a cosmic storm of such terrifying proportions that it can tear apart an entire galaxy.

“No other phenomena carries more mechanical energy,” said principal investigator Nahum Arav of Virginia Tech in a statement. “The winds are pushing hundreds of solar masses of material each year. The amount of mechanical energy that these outflows carry is up to several hundreds of times higher than the luminosity of the entire Milky Way galaxy.”

Continue reading “Behold the ‘Quasar Tsunami,’ Which Can Kill an Entire Galaxy” »

Apr 14, 2020

A new material to print mechanically robust and shape-shifting structures

Posted by in categories: 3D printing, materials

In recent years, 3D printing has opened up interesting new possibilities for the large-scale production of electronic components, as well as of a variety of other objects. To this end, research teams worldwide have been trying to create materials and structures that can easily change shape, as these could be particularly useful for 3D printing applications.

Although many of the programmable and -shifting materials developed so far have proved to be promising for 3D , they are often not mechanically robust. This makes them unideal for printing objects that are resistant to a lot of weight or strain.

To overcome this limitation, researchers at Georgia Institute of Technology, Peking University and Beijing Institute of Technology have recently proposed a new shape-morphing material system that is also mechanically robust. This new material, created via the volatilization of a volatile component that has not fully reacted, was presented in a paper published in ACS Applied Materials & Interfaces. The lead authors of this paper are Qiang Zhang and Xiao Kuang.

Apr 14, 2020

Discovery offers new avenue for next-generation data storage

Posted by in categories: computing, materials

The demands for data storage and processing have grown exponentially as the world becomes increasingly connected, emphasizing the need for new materials capable of more efficient data storage and data processing.

An international team of researchers, led by physicist Paul Ching-Wu Chu, founding director of the Texas Center for Superconductivity at the University of Houston, is reporting a new compound capable of maintaining its skyrmion properties at through the use of high pressure. The results also suggest the potential for using chemical pressure to maintain the properties at ambient pressure, offering promise for commercial applications.

The work is described in the Proceedings of the National Academy of Sciences.

Apr 14, 2020

Heavy iron isotopes leaking from Earth’s core

Posted by in category: materials

Could use magnetism to pull the iron back inside. O,.,o.


Earth’s molten core may be leaking iron, according to researchers who analyzed how iron behaves inside our planet.

The boundary between the liquid iron core and the is located some 1,800 miles (2,900 km) below Earth’s surface. At this transition, the by more than a thousand degrees from the hotter core to the cooler mantle.

Continue reading “Heavy iron isotopes leaking from Earth’s core” »

Apr 14, 2020

Military labs test plastic billed as ‘armor’ against lasers

Posted by in category: materials

Circa 1988 o.,o.


While the Pentagon is busy developing laser weapons, a small California company claims it has discovered a type of plastic that acts as armor against laser energy. The company stumbled on the material by accident and doesn’t fully understand why it works. Samples have been sent to several United States military labs, which are running tests to see how strong a laser beam the plastic can withstand.

“We’re trying to find out the full magnitude of its capabilities,” says Slava Harlamor, president of Harlamor-Schadeck Company, which developed the material.

Continue reading “Military labs test plastic billed as ‘armor’ against lasers” »