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1 Chapter 4 Imperfections in the Atomic and Ionic Arrangements
2 Objectives of Chapter 4 Introduce the three basic types of imperfections: 1.Point defects, 2.Line defects (or dislocations), and 3.Surface defects. Explore the nature and effects of different types of defects.
3 Sections 4:1-2 Point Defects
4 Point Defects vacancy interstitial atom small substitutional atom large substitutional Frenkel defect Schottky defect atom All of these defects disrupt the perfect arrangement of the surrounding atoms.