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Dislocation

In materials science, a dislocation is a linear crystallographic defect or irregularity within a crystal structure that contains an abrupt change in the arrangement of atoms. The movement of dislocations allows atoms to slide over each other at low stress levels and is known as glide or slip. The crystalline order is restored on either side of a glide…

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History & Science

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Overview

History

Mechanisms

Geometry

Example in two dimensions (2D)

Observation

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Map overview Semantic statistics

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Dislocation

Nodes75
Edges74
Triples129
Avg. degree1.97
Density0.026667
Components1

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Dislocation

Top relations

related to External links · 20
Dislocation → Austria, Chapter, Crystals/ Prof, Defects, Delphenich, DelphenichSomigliana, Difference, DoITPoMS Online, Dr, Edge, Faculty, Gallery Image, Helmut Föll, On, Physics, Scanning Tunneling Microscope, Screw, Technology, Vienna University, Volterra
related to Transmission electron microscopy (TEM) · 16
Dislocation → As, Burgers, Cambridge, Determination, Dislocations, Hirsch, Horne, Note, One, TEM, The, Therefore, Thin, Transmission, Whelan, When
related to Example in two dimensions (2D) · 12
Dislocation → Burgers, If, In, Kosterlitz-Thouless-Halperin-Nelson-Young-theory, Kosterlitz-Thouless-type, KTHNY, Simultaneously, The, They, This, Those, Young's
related to Jog · 10
Dislocation → At, Away, Because, Frank, Jog, Jogs, Read, The, They, When
related to Screw · 9
Dislocation → An, Burgers, If, In, It, The, These, This, Twist
related to Edge · 6
Dislocation → An, Burgers, In, The, These, When
related to Partial · 6
Dislocation → Frank, Partial, Removal, Shockley, The Burgers, Two
related to Mechanisms · 5
Dislocation → Burgers, Cottrell, Dislocations, The, This
is a · 4
Dislocation → defect where an extra half-plane of atoms is introduced midway through the crystal, function of the general state of stress, linear crystallographic defect or irregularity within a crystal structure that contains an abrupt change in the arrangement of atoms, linear crystallographic defect or irregularity within a crystal structure which contains an abrupt change in the arrangement of atoms
related to history · 4
Dislocation → Prior, Taylor, The, Vito Volterra

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Important terminology

dislocations crystal atoms material vector plane edge stress burgers screw lattice displaystyle line movement slip surface planes one structure glide

Entity relationships Subject–Predicate–Object triples

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SubjectPredicateObjectConfidenceSrc
Dislocationis alinear crystallographic defect or irregularity within a crystal structure that contains an abrupt change in the arrangement of atoms0.90text
Dislocationis alinear crystallographic defect or irregularity within a crystal structure which contains an abrupt change in the arrangement of atoms0.90text
Dislocationis adefect where an extra half-plane of atoms is introduced midway through the crystal0.90text
Dislocationis afunction of the general state of stress0.90text
metalsinstance ofDislocations are generated by deforming a crystalline material0.80text
which can cause them to initiate from surfacesinstance ofDislocations are generated by deforming a crystalline material0.80text
particularly at stress concentrations or within the material at defectsinstance ofDislocations are generated by deforming a crystalline material0.80text
grain boundariesinstance ofDislocations are generated by deforming a crystalline material0.80text
ductilityinstance ofThe number and arrangement of dislocations give rise to many of the properties of metals0.80text
hardnessinstance ofThe number and arrangement of dislocations give rise to many of the properties of metals0.80text
yield strengthinstance ofThe number and arrangement of dislocations give rise to many of the properties of metals0.80text
grain boundary slidinginstance ofaffecting phenomena0.80text

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