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Archive for the ‘materials’ category: Page 54

Sep 20, 2023

MIT Engineers Harness Kirigami for Ultrastrong and Lightweight Structures

Posted by in category: materials

Produced with techniques borrowed from Japanese paper-cutting, the strong metal lattices are lighter than cork and have customizable mechanical properties.

Cellular solids are materials composed of many cells that have been packed together, such as a honeycomb. The shape of those cells largely determines the material’s mechanical properties, including its stiffness or strength. Bones, for instance, are filled with a natural material that enables them to be lightweight, but stiff and strong.

Inspired by bones and other cellular solids found in nature, humans have used the same concept to develop architected materials. By changing the geometry of the unit cells that make up these materials, researchers can customize the material’s mechanical, thermal, or acoustic properties. Architected materials are used in many applications, from shock-absorbing packing foam to heat-regulating radiators.

Sep 19, 2023

Axial Higgs mode spotted in materials at room temperature

Posted by in categories: materials, quantum physics

Year 2022 This could be a good room temperature superconductor 😗😁.


New quasiparticle could be used in quantum sensors.

Sep 19, 2023

Intel’s glass substrate promises 1T transistors by 2030

Posted by in categories: materials, robotics/AI

Intel is trying to keep up with the exploding demand for new computing horsepower.

In what is being seen as a shift from silicon, Intel announced Monday their progress in commercializing glass substrates toward the end of the decade. The company said that glass substrates are an improvement in design, allowing more transistors to be connected in a package and will help overcome the limitations of organic materials.

As the world advances to incorporate developments in data-intensive workloads in artificial intelligence, glass substrates, in comparison to organic substrates,… More.

Continue reading “Intel’s glass substrate promises 1T transistors by 2030” »

Sep 19, 2023

Pauli-limit violation and re-entrant superconductivity in moiré graphene

Posted by in category: materials

This is a room temperature superconductor it is called graphene 😗.


A large violation of the Pauli limit and re-entrant superconductivity in a magnetic field is reported for magic-angle twisted trilayer graphene, suggesting that the spin configuration of the superconducting state of this material is unlikely to consist of spin singlets.

Sep 19, 2023

Antimatter Rifles

Posted by in categories: materials, military

Antimatter is vastly more dangerous than even nuclear weapons, but warm temperature superconductors may allow it to be weaponized into man-portable machinegu…

Sep 19, 2023

Graphene ribbons advance twistronics

Posted by in category: materials

A new technique allows for much better control of twist angle and strain in layered two-dimensional materials.

Sep 19, 2023

Study: MXene versatile material successfully mass-produced

Posted by in category: materials

MaxKolmeto / iStock.

A team of researchers led by Seung-Cheol Lee, director of the Indo-Korea Science and Technology Center(IKST) at the Korea Institute of Science and Technology (KIST), developed a method to predict the distribution of molecules on the surface using the magnetoresistance property of MXene, according to a statement by the scientists.

Sep 19, 2023

Extract Rare Earth Magnets from Retired Wind Turbines

Posted by in categories: materials, sustainability

“In particular, the wind turbine sector uses very large quantities of a rare earth magnet that’s an alloy of neodymium, iron and boron (NdFeB). These NdFeB magnets are critical components used in PMSGs (Permanent Magnet Synchronous Generator) in larger onshore and offshore wind turbines”.


Extracting the rare earth magnets from end-of-life wind turbines and enabling their use in new wind turbines, both onshore and offshore

Named Re-Rewind, the partnership, partly funded by Innovate UK, aims to establish the UK’s first circular supply chain for the rare earth magnets used in wind turbines.

Continue reading “Extract Rare Earth Magnets from Retired Wind Turbines” »

Sep 17, 2023

Researchers develop a novel method to generate deep-UV light

Posted by in categories: biotech/medical, materials

This device can generate deep-UV light with a very narrow wavelength range that is safe for humans but lethal for germs.

A new device that can generate deep-ultraviolet (UV) light to kill germs without harming humans has been developed by a team of researchers from Osaka University, Japan. The device uses a novel method of combining two visible photons into one deep-UV photon inside a thin waveguide made of aluminum nitride, a material that has nonlinear optical properties.

The research, named “229 nm far-ultraviolet second harmonic generation in a vertical polarity inverted AlN bilayer channel waveguide,” has been published in the journal Applied Physics Express.

Sep 17, 2023

A nonrelativistic and nonmagnetic mechanism for generating terahertz waves

Posted by in categories: materials, nanotechnology

Scientists and engineers keep developing ever faster and more powerful technological devices. But there is a need for even faster and more efficient electronics. A promising route is to take advantage of terahertz waves, a less-explored part of the electromagnetic spectrum nestled between the infrared and microwave regions. Terahertz waves are uniquely sensitive to charge carriers in conducting systems, proving a powerful probe to understand the magnetic properties of new materials.

The quest for ultrafast electronics and coherent sources can be significantly aided by the precise and ultrafast control of light-induced charge currents at nanoscale interfaces.

Existing methods, including inverse spin-Hall effect (ISHE), inverse Rashba–Edelstein effect, and inverse spin-orbit-torque effect, convert longitudinally injected spin-polarized currents from to transverse charge currents, thus generating . However, these relativistic mechanisms rely on external magnetic fields and suffer from low spin-polarization rates and relativistic spin-to-charge conversion efficiencies characterized by spin-Hall angle.

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