Engineering Physics 1

Real Crystals and Point Defects - Crystal Structure - Engineering Physics 1

Ekeeda

Real crystals are different from the ideal crystals wherein there are certain defects in the synthesis of
crystal, so let 's study about them in detail music as you know crystals are synthesized by using unit
cells. In the structure of these unit cells. the pricing of diamond is of course, dependent on the purity
and of course on the crystal structure. the first defect in which the first defect is the vacancy defect.
this is the place where vacancy is created. This is the vacant site. the removed electron or atom does
not vanish. It does not get destroyed mathematically. the average energy required to create vacancy
is the amount of energy needed to create one vacancy.. interstitial industrial is nothing but as
intermediary positions now an extra atom of the same type. energy by which you can create one
vacancy now k as you know is Boltzmann constant. Now we will be doing the numericals in the
coming classes of course, the next effect will be talking about this interstitial defect..