Intercrystalline
Intercrystalline refers to the spaces, boundaries, or interfaces between individual crystals within a solid material, typically metals or ceramics. These intercrystalline regions play a crucial role in determining the mechanical properties, such as strength and ductility, of the material. Interactions and defects within these boundaries can lead to various types of grain boundaries, including low-angle boundaries, high-angle boundaries, and twin boundaries. Understanding and controlling intercrystalline structures is important in materials science and engineering for optimizing the performance of various industrial applications.