Metals

Perovskites are one of the most promising new materials for solar cell technology. Now engineers at the University of Rochester have developed a way to more than triple the material’s efficiency by adding a layer of reflective silver underneath it.

Researchers have used a novel 3D printing technique to create a new superalloy with "previously unobtainable combinations of high strength, low weight and high-temperature resiliency" – and they say the implications in aerospace and energy are huge.

A team of researchers has developed a new material that’s not only elastic, but is impervious to gases and liquids – something this kind of material is usually bad at. The material could be useful for making flexible batteries or wearable electronics.

Researchers in New Zealand and Australia have grown tiny metal snowflakes, cubes, rods and other shapes. The nanocrystals form like snow out of a liquid metal, demonstrated an intriguing new potential method for manufacturing nanoscale structures.

Scientists experimenting with the makeup of next-gen metals have developed a novel, copper-based alloy they say would be simple to produce at scale, and boasts unparalleled elasticity at room temperature.

While 3D printing technology does allow complex metal parts to be produced efficiently, such items often deform when stressed and heated. That may soon no longer be the case, however, thanks to a new technique developed at MIT.

The seafloor is rich in valuable metals, but gathering them is disruptive to the environment. An international project has now tested a system called Apollo 2, which can vacuum up metal nodules without kicking up sediment.

Engineers have developed a new 3D-printed titanium alloy with a unique microstructure that makes it ultra-strong. Not only is it stronger than other forms of titanium, but it has the highest strength-to-weight ratio of any 3D-printed metal ever made.

Researchers at EPFL have discovered a material that seems to be able to “remember” all of its past encounters with stimuli, such as electrical currents. The compound could come in handy for better data storage and processing.

A striking study has found eggs from hens in urban backyards can contain up to 40 times more lead than eggs from commercially farmed hens. The researchers recommend those in inner-city locations test their soil before raising chickens or growing food.

With new manufacturing techniques comes the opportunity for new metal alloys with a range of possible properties. A team of researchers has now developed a new 3D-printable alloy with a specific nanostructure that makes it ultra strong and ductile.

When cooking oil is extracted from peanuts and sunflower seeds, a waste product known as oilseed meal is left behind. New research shows that proteins harvested from that meal can be used to filter heavy metals out of contaminated water.