crystal-1 - unit cell . It is the building block of the...

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Crystalline materials are characterized by a regular atomic structure that repeats itself in all three dimensions. In other words the structure displays translational symmetry . The structure consists of a simple group of atoms that repeats itself periodically in space. This periodicity can be revealed using the concept of a lattice . Crystals
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Unit Cell The structure of a crystal can be seen to be composed of a repeated element in three dimensions. This repeated element is known as the
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Unformatted text preview: unit cell . It is the building block of the crystal structure. Lattice To define the geometry of the unit cell in 3 dimensions we choose a right-handed set of crystallographic axes, x, y, and z , which point along the edges of the unit cell. The origin of our coordinate system is at one of the lattice points. Lattice vectors Close Packed Direction Packing Efficiency (number of atoms per cell)*(volume of one atom) volume of unit cell...
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This document was uploaded on 10/28/2011 for the course MSE 250 at Michigan State University.

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crystal-1 - unit cell . It is the building block of the...

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