hydrogen embrittlement
Advanced Materials

Hydrogen embrittlement in high-strength steels

25.05.2018 tribonet 290 Views
Manufacturers of vehicle and machine components often use high-strength steels to save material in lightweight construction and for crash-relevant structural components that require exceptionally high durability. When welding these components, various factors may lead to […]
A new manufacturing process produces strips of graphene, at large scale, for use in membrane technologies and other applications.
Advanced Materials

A graphene roll-out

23.05.2018 tribonet 72 Views
Scalable manufacturing process spools out strips of graphene for use in ultrathin membranes. MIT engineers have developed a continuous manufacturing process that produces long strips of high-quality graphene. The team’s results are the first demonstration […]
This scanning electron microscope image shows ultrafine diamond needles (cone shapes rising from bottom) being pushed on by a diamond tip (dark shape at top). These images reveal that the diamond needles can bend as much as 9 percent and still return to their original shape.
Advanced Materials

How to bend and stretch a diamond

18.05.2018 tribonet 108 Views
The brittle material can turn flexible when made into ultrafine needles, researchers find. Diamond is well-known as the strongest of all natural materials, and with that strength comes another tightly linked property: brittleness. But now, […]
“We are particularly interested in wetsuits for surfing, where the athlete moves frequently between air and water environments,” says Anette (Peko) Hosoi, a professor of mechanical engineering and associate head of the department at MIT. “We can control the length, spacing, and arrangement of hairs, which allows us to design textures to match certain dive speeds and maximize the wetsuit's dry region.”
Advanced Materials

Beaver-inspired wetsuits in the works

09.05.2018 tribonet 104 Views
Rubbery hair-lined wetsuits may help keep surfers warm. Beavers and sea otters lack the thick layer of blubber that insulates walruses and whales. And yet these small, semiaquatic mammals can keep warm and even dry […]