For 10 points, name these deviations from perfect symmetry in a crystal.
The activation energy for interdiffusion depends sensitively on the concentration of one form of these. The e-to-a ratio corresponds very closely to the SFE, which is the energy density associated a type of these known as a stacking fault. Point-like ones and their antiparticles comprise Frankel pairs and can be specified by KrÃ¶gerÂ–Vink notation. Plastic deformation corresponds to migration of one type of these; such one-dimensional ones can be classified as mixed, screw, or edge depending on the orientation of the planes of atoms joined. Types of them include dislocations, grain boundaries, interstitials, and vacancies, which occur when an expected atom is missing. For 10 points, name these deviations from perfect symmetry in a crystal.
The activation energy for interdiffusion depends sensitively on the concentration of one form of these.
crystallographic defects