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.

• Aims
• Before you start
• Introduction
• Dislocations in 2D
• Bubble raft
• Dislocation motion
• Dislocation glide
• Dislocations in 3D
• Observing dislocations
• Summary
• Questions
• Going further

Begin

First created: April 2004. "Going further" updated: January 2008.