Guided Question:(Pls Answers all this Question.) 1. In crystal growth, what is the purpose of the seed crystal? 2. What is the importance of leaving the crystal growth undisturbed? How are imperfections formed in crystal growth? Cite some examples. 3. Compare and contrast the two types of close-packing in solids? 4. Why is there % error in part II? What could be the reason for such error? 5. By understanding the structure of crystals molecularly, what is its relation to the strength of materials? 6. Use the internet to search three (3) examples of metals which have HCP, FCC and BCC structures. Relate the structure to the characteristic properties of each metal. Please indicate the condition the given structures are observed.
Guided Question:(Pls Answers all this Question.) 1. In crystal growth, what is the purpose of the seed crystal? 2. What is the importance of leaving the crystal growth undisturbed? How are imperfections formed in crystal growth? Cite some examples. 3. Compare and contrast the two types of close-packing in solids? 4. Why is there % error in part II? What could be the reason for such error? 5. By understanding the structure of crystals molecularly, what is its relation to the strength of materials? 6. Use the internet to search three (3) examples of metals which have HCP, FCC and BCC structures. Relate the structure to the characteristic properties of each metal. Please indicate the condition the given structures are observed.
Physical Chemistry
2nd Edition
ISBN:9781133958437
Author:Ball, David W. (david Warren), BAER, Tomas
Publisher:Ball, David W. (david Warren), BAER, Tomas
Chapter21: The Solid State: Crystals
Section: Chapter Questions
Problem 21.3E
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Guided Question:(Pls Answers all this Question.)
1. In crystal growth, what is the purpose of the seed crystal?
2. What is the importance of leaving the crystal growth undisturbed? How are imperfections formed in crystal growth? Cite some examples.
3. Compare and contrast the two types of close-packing in solids?
4. Why is there % error in part II? What could be the reason for such error?
5. By understanding the structure of crystals molecularly, what is its relation to the strength of materials?
6. Use the internet to search three (3) examples of metals which have HCP, FCC and BCC structures. Relate the structure to the characteristic properties of each metal. Please indicate the condition the given structures are observed.
Transcribed Image Text:HCP
FCC
ВСС
16
16
8
r
.3
- Tr3
3
.3
Volume of
Atoms in unit cell
V2
V2
V3
Volume of units
a
4
a
4
a
4
cell
0.7401
0.7401
0.6798
Calculate APF
0.740
0.740
0.680
Known APF
0.01 %
0.01 %
0.02 %
% Error
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