CHAPTER 4 Flashcards
NOT FINITO
1
Q
What is solidification the result of
A
casting of molten material
2
Q
What are grain boundaries and what causes them?
A
regions between grains (crystals) caused by crystallographic misalignment across a grain boundary
3
Q
What are point defects
A
0 dimensional
-vacancies
-interstitial atoms
-substitutional impurity atoms
4
Q
What are linear defects?
A
1D
dislocations
5
Q
What are interfacial defects?
A
2D
Grain boundaries
6
Q
How does temperature relate to vacancy concentration?
A
Vacancy concentration increases as temperature increasesq
7
Q
What are the types of impurities
A
Substitutional (same size)
Interstitial (between atoms, smaller)
8
Q
A
