Category: Crystallography
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…
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)…
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…
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…
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…
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…
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…
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…
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…
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…