point defect การใช้

• At the end, both point defects and dislocation loops remain.
• Point defects can nucleate reversed domains in ferromagnets and dramatically affect their coercivity.
• These irregularities are point defects and line defects.
• Grain boundaries also cause deformation in that they are sources and sinks of point defects.
• It is the simplest point defect.
• There are three main point defects.
• This can be extended to find the equilibrium concentration of other types of surface point defects as well.
• Charged impurity ions and point defects have scattering cross-sections that are much greater than their neutral counterparts.
• A point defect is an irregularity located at a single lattice site inside of the overall three-dimensional lattice of the grain.
• While point defects are irregularities at a single site in the crystal lattice, line defects are irregularities on a plane of atoms.
• Films of less than 4 祄 generally are not used for film / foil capacitors because of their excessively high numbers of point defects.
• Examples of intrinsic inhomogeneities are point defects, structural inhomogeneities caused by frozen-in density and composition fluctuations, and nanoscale roughness on glass surface.
• Frenkel s idea was expanded by Carl Wagner and Walter Schottky in their 1929 theory, which described the equilibrium thermodynamics of point defects in ionic crystals.
• Finally, in the last step of fusion, this point defect grows and the components of the two bilayers mix and diffuse away from the site of contact.
• With this approach, point defects, nanoscale precipitates and mesoscale grain boundaries are introduced as effective scattering centers for phonons with different mean free paths, without affecting charge carrier transport.
• In general impurities are able to serve as initiation points for phase transitions because the energetic cost of creating a finite-size domain of a new phase is lower at a point defect.
• When a vacancy arrives at the place where the dislocation is stuck it can cause the dislocation to climb out of its glide plane, after which the point defect is no longer in its way.
• In crystallography, the phrase'perfect crystal'can be used to mean  no line or planar defects, as it is difficult to measure small quantities of point defects in an otherwise defect-free crystal.
• A dislocation that has been brought to a halt by an obstacle ( a point defect ) can overcome the obstacle and start moving again by a process called vacancies have to be able to move through the crystal.