Dislocations in Solids

Dislocations are lines of irregularity in the structure of a solid analogous to the bumps in a badly laid carpet. Like these bumps they can be easily moved, and they provide the most important mechanism by which the solid can be deformed. They also have a strong influence on crystal growth and on the electronic properties of semiconductors.*Influence of dislocations on piezoelectric behavior*New mechanisms for hardening in twinned crystals*Bringing theories of martensite transformation into agreement*Atomic scale motion of dislocations in electron microscopy*Dislocation patterns deduced from X-ray diffraction*Role of dislocations in friction*Dislocation motion in quasicrystals