Whisker

A monocrystalline whisker is a filament of material that is structured as a single, defect-free crystal. Some typical whisker materials are graphite, alumina, iron, silicon…

Continue Reading...

Vacancy

Vacancy, in crystallography, absence of an atom or molecule from a point that it would normally occupy in a crystal. Such an imperfection (crystal defect)…

Continue Reading...

Unit Cell

A unit cell is the smallest portion of a crystal lattice that shows the three-dimensional pattern of the entire crystal. A crystal can be thought…

Continue Reading...

Tetrahedral Position

In hcp type of packing, the spheres of molecules of a particular row in a particular dimension are in a position that they fit into…

Continue Reading...

Solid Solution Strengthening

Solid solution strengthening is a type of alloying that can be used to improve the strength of a pure metal.[1] The technique works by adding…

Continue Reading...

Solid solution

Solid solution, mixture of two crystalline solids that coexist as a new crystalline solid, or crystal lattice. The mixing can be accomplished by combining the…

Continue Reading...

Slip (Plastic Deformation)

Slip is the prominent mechanism of plastic deformation in metals. It involves sliding of blocks of crystal over one other along definite crystallographic planes, called…

Continue Reading...

Single Crystal

A single crystal or monocrystalline solid is a material in which the crystal lattice of the entire sample is continuous and unbroken to the edges…

Continue Reading...

Self Interstitials

The problems incurred with first principles calculations on self-interstitials are similar to that of the vacancy. There have been many reports on the interstitial site…

Continue Reading...

Screw Dislocation

Screw dislocation is another type of line defect in which the defect occurs when the planes of atoms in the crystal lattice trace a helical…

Continue Reading...