AMES, Iowa – When Valery Levitas left Europe in 1999, he packed up a rotational diamond anvil cell and brought it to the United States. He and the researchers in his group are still using a ...

High-pressure torsion (HPT) is a severe plastic deformation technique that imposes intense shear strain under quasi-hydrostatic pressures to refine grain structure and induce non-equilibrium phases in ...

The toughness, ductility, and wear resistance of metallic alloys are dictated by the phases present in their microstructure and how these phases are distributed. During heat treatments such as ...

By stacking custom-designed silver nanoparticles like nanoscale LEGO bricks, scientists stabilized a mysterious crystal phase that had never been observed before. The material not only solves a ...

Scientists have used pressure with a twisting shear to permanently deform silicon, an important material for electronics. The resulting changes in silicon's microstructure produce material phases that ...