Lecture # 30-31 | All Types of Defects or Imperfections in Solids
1. Types of Defects Based on Stoichiometry
1.1 Stoichiometric Defects
1.1.1 Schottky
1.1.2 Interstitial
1.1.3 Frenkel
1.2 Non- Stoichiometric Defects
1.2.1 Anion vacancies
1.2.2 Defect due to the presence of extra cations at interstitial sites
1.2.3 Defect due to the deficiency of cations
2. Classification of Defects Based on Dimension
2.1 Point Defects (0D Defects)
2.2 Extended Defects
2.2.1 Dislocations (1D or Linear Defects)
2.2.2 Grain Boundaries (2D or Planar Defects)
2.2.3 Bulk Defects (3D or Volume Defects)