Structure and Properties of Engineering Materials
Structure and Properties of Engineering Materials The existence of solids in nature occurs principally in two forms: crystalline non-crystalline (amorphous) Crystals are solids that possess long-range order. There is a long-range order in crystalline solids, a regular pattern of arrangement of particles that repeats itself periodically can be seen over the whole crystal. Excluding the defects that can arise during the crystal growth, the arrangement of the atoms at one point in a crystal is identical to that in any other part of the crystal. Determination of the number of ways in which the component atoms are arranged in crystals and how the long-range order may be achieved is done using crystallography. Many physical and chemical properties are dependent on crystal structure and therefore the knowledge of crystallography is necessary if the properties of materials are to be understood and exploited. Space Lattices- A space lattice provides the framework with reference to whic
