types of voids

Tetrahedral Voids - A simple triangular void in a crystal is surrounded by four spheres. fig 2.11 - A unit cell of simple cubic packing fig 2.11 - (a) Tetrahedral void..

In two-dimensional packing, hexagonal close packing is more efficient. In three dimensions the second layer spheres are placed in the A voids and B voids are unoccupied. In the second layer there are C and D voids. The third layer is placed such that it covers the C h..

Solid solutions are formed by mixing two solid components. Alloys (mixtures of metals) are the examples of solid solutions. Solid solutions can be classified under two types: a) Substitutional solid solutions b) Interstitial solid solutions. In substitutional solid solutions atoms, molecu..

In solids, atoms or molecules are closely packed and the intermolecular space or void is minimum. The average distance between particles is of the order 10 -8 cm; consequently, solids are almost incompressible. In addition, the intermolecular attraction in solids is quite high and for tha..