Point Defect in Solid
When crystallisation occurs quickly, point defects arise, preventing a perfect crystal structure from forming. It should be noted, however, that even during a slow crystallisation, there exist defects. Point Defects can be divided into three categories.
It is probably noted that vacancy and interstitial defects are shown by non-ionic solids. On the other hand, ionic solids must always maintain electrical neutrality.
The point defects in ionic crystals presumably behind-the-scenes as:
- Stoichiometric Defect
- Frenkel Defect
- Schottky Defect
- Non Stoichiometric Defect
Point Defects
Solids are made up of a lot of small crystals. However, the defect in solids occurs during the crystallization process due to the fast or moderate rate of crystal formation. Defects are described as irregularities in the arrangement of constituent particles in general. The defect could be a point or a line defect based on the irregular arrangement. A deviation point defect occurs in an ideal crystal when there are anomalies in the arrangement around any point or atom in the crystal. Similarly, a line defect occurs when there is a variation in the arrangement of the entire row of lattice points in crystals.
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