Grain boundaries in polycrystalline graphene are an obstacle to electron transport. However, cunning refinements in growth techniques push the limits to obtain super-sized single-crystal domains.

However, there are important exceptions, especially in cases for which compromises must be made between mechanical and electrical properties and costs. In these materials, grain boundaries play a ...

Grain boundary dynamics driven by magnetically induced circulation at the void interface of 2D colloidal crystals. Science Advances , 2022; 8 (22) DOI: 10.1126/sciadv.abn5715 Cite This Page : ...

Grain boundaries are internal interfaces in polycrystalline materials that often control the materials’ properties. The segregation of alloying elements or impurities at grain boundaries can ...

"These grain boundaries have an enormous influence on the durability and overall performance of a material," says Dr. Vivek Devulapalli who has performed the microscopy work of the study.

Low-Angle Grain Boundaries (LAGBs): LAGBs have a misorientation angle less than 15° and are composed of an array of dislocations.They have a relatively low interfacial energy and maintain a coherent ...

Based on the above theoretical mineral physics approach, the team examined the mechanical behavior and thermodynamic properties of high-angle tilt grain boundaries in (Mg,Fe)O ferropericlase ...

Grain boundary mobility was found to vary significantly with pressure. Surprisingly, strong grain boundary weakening was observed with increasing depth, ...

However, understanding how grain boundaries affect heat flow in this material, is crucial to determining how good it might be for thermal management applications. “Until now, researchers have studied ...