DoITPoMS
Teaching & Learning Packages
Introduction To Dislocations
Introduction To Dislocations
Dislocations are crucially important in determining the mechanical behaviour of materials. This teaching and learning package provides an introduction to dislocations and their motion through a crystal. A 'bubble raft' model is used to demonstrate some of the features of dislocations and other lattice defects. Some methods for observing real dislocations in materials are examined.
Photograph of a bubble raft
First created: April 2004. "Going further" updated: January 2008.