Chapter 5 Flashcards
vacancies
vacant atomic sites
self-interstitials
host atoms positioned in interstitial positions between atoms
Vacancies exist in both cations and anions, and interstitials exist only for cations. (T or F)
True
Frenkel Defect
a cation vacancy-cation interstitial pair
Shottky Defect
a paired set of cation and anion vacancies
dislocations
1D defects around which atoms are misaligned
edge dislocations
extra half-plane of atoms inserted in crystal structure
screw dislocation
spiral planar ramp resulting from shear deformation
solidification
result of casting of molten material
transgranular fracture
through the grain
intergranular fracture
along the grain
stacking faults
occurs when there is an error in the planar stacking sequence