Editing Dislocation (section)

==== Interfaces ====
The interface between a metal and an oxide can greatly increase the number of dislocations created.  The oxide layer puts the surface of the metal in tension because the oxygen atoms squeeze into the lattice, and the oxygen atoms are under compression.  This greatly increases the stress on the surface of the metal and consequently the amount of dislocations formed at the surface.  The increased amount of stress on the surface steps results in an increase in dislocations formed and emitted from the interface.<ref>[[Marc A. Meyers|Marc André Meyers]], Krishan Kumar Chawla (1999) ''Mechanical Behaviors of Materials.'' Prentice Hall, pp. 228–31, {{ISBN|0132628171}}.</ref>

Dislocations may also form and remain in the interface plane between two crystals. This occurs when the lattice spacing of the two crystals do not match, resulting in a misfit of the lattices at the interface. The stress caused by the lattice misfit is released by forming regularly spaced misfit dislocations. Misfit dislocations are edge dislocations with the dislocation line in the interface plane and the Burgers vector in the direction of the interface normal. Interfaces with misfit dislocations may form e.g. as a result of [[Epitaxy|epitaxial crystal growth]] on a substrate.<ref>{{Cite journal|last1=Schober|first1=T.|last2=Balluffi|first2=R. W.|date=1970-01-01|title=Quantitative observation of misfit dislocation arrays in low and high angle twist grain boundaries|journal=The Philosophical Magazine|volume=21|issue=169|pages=109–123|doi=10.1080/14786437008238400|bibcode=1970PMag...21..109S|issn=0031-8086}}</ref>