A new MIT-developed heat treatment transforms the microscopic structure of 3D-printed metals, making the materials stronger and more resilient in extreme thermal environments. The technique could make ...

The limitation of nanograined materials is their strong tendency to coarsen at elevated temperatures. As grain size decreases into the nanoscale, grain coarsening occurs at much lower temperatures, as ...

Increasing the density of grain boundaries can enhance the room-temperature strength of polycrystalline alloys. However, at high temperatures, the diffusion of grain boundaries decreases their ...

Researchers determined exactly what happens as crystal grains in metals form during an extreme deformation process, at the tiniest scales, down to a few nanometers across. The findings could lead to ...

A new study suggests that tiny, mineral grains — squeezed and mixed over millions of years — set in motion the chain of events that plunge massive tectonic plates deep into the Earth’s interior. The ...

The preferred rock for grinding stones in Tigrai is a slightly friable quartzite. However, some households may not have access to the best quarry sites so may use a quartzitic sandstone. Like other ...

A new way to 3D-print metals makes the materials stronger and more resilient in extreme thermal environments. The technique could lead to 3D printed high-performance blades and vanes for gas turbines ...