Automotive
Metal fatigue has emerged as the chief suspect in last week's spectacular engine failure on a United Airlines plane, which scattered debris over suburban Denver and led to dozens of Boeing 777 aircraft being grounded worldwide.
Feb 23, 2021
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Energy & Green Tech
Lithium metal batteries could double the amount of energy held by lithium-ion batteries, if only their anodes didn't break down into small pieces when they were used.
Feb 8, 2021
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Energy & Green Tech
There are high hopes for the next generation of high energy-density lithium metal batteries, but before they can be used in our vehicles, there are crucial problems to solve. An international research team led by Chalmers ...
Jan 19, 2021
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Electronics & Semiconductors
The continual scaling of Si-based transistors is challenged by short channel effects that limit further gate length scaling. Field-effect transistors (FETs) with semiconducting transition metal dichalcogenides (MX2, such ...
Jan 12, 2021
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Electronics & Semiconductors
The oxygen evolution reaction (OER) is a chemical process that leads to the generation of molecular oxygen. This reaction is of key importance for the development of clean energy technologies, including water electrolyzers, ...
Electronics & Semiconductors
Resistive switching memory devices offer several advantages over the currently used computer memory technology. Researchers from the MIPT Atomic Layer Deposition Lab have joined forces with colleagues from Korea to study ...
Nov 23, 2020
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4
Electronics & Semiconductors
To fabricate nanoscale photonic and electronic devices, engineers need electrodes made of asymmetric metals separated by gaps in the nanometer (nm) length scale. So far, most of these electrodes were fabricated using high-end ...
Electronics & Semiconductors
Hydrogen gas and methanol for fuel cells, or as raw materials for the chemicals industry, for example, could be produced more sustainably using sunlight, a new Uppsala University study shows. In this study, researchers have ...
Nov 18, 2020
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Engineering
Lithium cobalt oxide is a layered metal oxide that has attracted great attention to develop rechargeable batteries. Sodium-ion batteries can store grid-scale energy due to the natural abundance of sodium. The composition ...
Consumer & Gadgets
With new video game consoles out this week, Microsoft and Sony are decades-long incumbents in the industry. But that wasn't always the case.
Nov 16, 2020
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In chemistry, a metal (Greek: Metallo, Μέταλλο) is an element, compound, or alloy characterized by high electrical conductivity. In a metal, atoms readily lose electrons to form positive ions (cations); those ions are surrounded by delocalized electrons, which are responsible for the conductivity. The thus produced solid is held by electrostatic interactions between the ions and the electron cloud, which are called metallic bonds.
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