dislocation+defect

См. также в других словарях:

• Dislocation creep — is a deformation mechanism in crystalline materials. Dislocation creep involves the movement of dislocations through the crystal lattice of the material. It causes plastic deformation of the individual crystals and in the end the material itself …   Wikipedia

• Dislocation — For the syntactic operation, see Dislocation (syntax). For the medical term, see Joint dislocation. In materials science, a dislocation is a crystallographic defect, or irregularity, within a crystal structure. The presence of dislocations… …   Wikipedia

• dislocation — /dis loh kay sheuhn/, n. 1. an act or instance of dislocating. 2. the state of being dislocated. 3. Crystall. (in a crystal lattice) a line about which there is a discontinuity in the lattice structure. Cf. defect (def. 3). [1350 1400; ME… …   Universalium

• dislocation — a linear crystalline defect around which there is atomic misalignment; plastic deformation corresponds to the motion of dislocations in response to an applied shear stress; edge, screw, and mixed dislocations are possible. The movement of… …   Mechanics glossary

• dislocation — /dɪsləˈkeɪʃən/ (say disluh kayshuhn) noun 1. the act of dislocating. 2. the state of being dislocated. 3. a dislocated joint. 4. Geology a fault. 5. Crystallography a defect in the orderly structure of a crystal. {Middle English dislocacion, from …  

• Crystallographic defect — Crystalline solids exhibit a periodic crystal structure. The positions of atoms or molecules occur on repeating fixed distances, determined by the unit cell parameters. However, the arrangement of atom or molecules in most crystalline materials… …   Wikipedia

• Topological defect — Also see base concepts: topology, differential equations, quantum theory condensed matter physics .In mathematics and physics, a topological soliton or a topological defect is a solution of a system of partial differential equations or of a… …   Wikipedia

• crystal defect — Crystall. defect (def. 3). * * * ▪ crystallography       imperfection in the regular geometrical arrangement of the atoms in a crystalline solid. These imperfections result from deformation of the solid, rapid cooling from high temperature, or… …   Universalium

• congenital dislocation of the hip — an abnormality present at birth in which the head of the femur is displaced or easily displaceable from the acetabulum (socket) of the ilium, which is poorly developed; it frequently affects both hip joints. CDH occurs in about 1.5 per 1000 live… …   Medical dictionary

• edge dislocation — a linear crystalline defect associated with the lattice distortion produced in the vicinity of the end of an extra half plane of atoms within a crystal; the Burgers vector is perpendicular to the dislocation line …   Mechanics glossary

• congenital dislocation of the hip — CDH an abnormality present at birth in which the head of the femur is displaced or easily displaceable from the acetabulum (socket) of the ilium, which is poorly developed; it frequently affects both hip joints. CDH occurs in about 1.5 per 1000… …   The new mediacal dictionary