This X-ray radiographic image ­– similar to a medical X-ray, but taken at ultrafast speed with an X-ray laser ­– shows shock waves traveling through a diamond crystal. The initial wave is elastic. The ...

For nearly a century, scientists have understood how crystalline materials—such as metals and semiconductors—bend without breaking. Their secret lies in tiny, line-like defects called dislocations, ...

Understanding how dislocations (line defects in the crystal structure) occur when 3D-printing metals has been unclear to materials scientists. Understanding when and how dislocations form in ...