Dislocation motion in a crystal is analogous to moving a rug over a floor by introducing a ruck on one edge. Pushing the ruck to the other edge moves the carpet by the width of the ruck. This process ...

Dislocations in Metals Many important properties of metals are now understood to result from a kind of imperfection in crystal lattices that is called a dislocation. The theory is helping to ...

The theory predicts further that the primary nucleation of a crystal from the vapour requires still larger saturation ratios, so that the critical conditions for nucleation of the liquid are ...

A pair of University of Houston professors, known for their contributions to crystal engineering with specific breakthroughs ...

Dislocations are defects in the crystal structure of important engineering materials, such as metals, ceramics and semi-conductors, that strongly influence the properties of these materials. Research ...

Researchers show that Cartan's First Structure Equation, which relates to edge and screw dislocations in crystal lattices, can be recast in the same form as a basic mathematical formula that governs ...

The diagram shows the effect of 'sliding' an Edge (a), Screw (b), or Mixed (c) dislocation completely across a slip plane in the crystal. Each dislocation has the same effect as it moves completely ...